Search Results: Wikipedia:COS


Wikipedia:Conflict of interest
Senin, 2026-08-10 18:53:42

Conflict of interest (COI) editing involves contributing to Wikipedia articles about yourself, family, friends, clients, employers, or your financial and...

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Wikipedia:Sockpuppet investigations/Cos Eile
Sabtu, 2012-03-24 04:18:10

Cos Eile (talk+ · tag · contribs · deleted contribs · logs · filter log · block user · spi block · block log · CA · CheckUser(log) · investigate · cuwiki ·...

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Wikipedia:Sockpuppet investigations/Cos Eile/Archive
Senin, 2022-03-21 11:36:01

Cos Eile (talk+ · tag · contribs · deleted contribs · logs · filter log · block user · spi block · block log · CA · CheckUser(log) · investigate · cuwiki ·...

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Wikipedia:Sockpuppet investigations/Thekz Cos
Minggu, 2025-03-30 10:54:01

Thekz Cos (talk+ · tag · contribs · deleted contribs · logs · filter log · block user · spi block · block log · CA · CheckUser(log) · investigate · cuwiki ·...

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Wikipedia:Sockpuppet investigations/Thekz Cos/Archive
Minggu, 2025-03-30 10:54:01

Thekz Cos (talk+ · tag · contribs · deleted contribs · logs · filter log · block user · spi block · block log · CA · CheckUser(log) · investigate · cuwiki ·...

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Wikipedia:Articles for deletion/Cos Natola
Selasa, 2026-01-06 06:38:14

this page.‎ The result was delete. Courcelles 23:40, 16 August 2011 (UTC) Cos Natola (edit | talk | history | protect | delete | links | watch | logs |...

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Wikipedia:Featured article candidates/Philitas of Cos
Jumat, 2023-02-10 04:29:01

Philitas of Cos omit, for Philitas' life at Cos after Alexandria? I added the events in question: they are that Philitas spent at least 10 years in Cos after...

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Wikipedia:Peer review/Philitas of Cos/archive1
Minggu, 2017-07-23 08:11:02

BC; thanks. I was never much of a fan of wikilinking to dates. Philitas of Cos #Bibliography is about Philitas' works (as published in several editions)...

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Wikipedia:Miscellany for deletion/Draft:Cos Bar
Selasa, 2022-05-24 18:44:30

CambridgeBayWeather, Uqaqtuq (talk), Sunasuttuq 07:09, 14 February 2017 (UTC) Draft:Cos Bar (edit | talk | history | links | watch | logs) Resubmitted a month or...

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Wikipedia:Articles for deletion/List of Advance Wars: Days of Ruin COs
Rabu, 2026-01-07 19:15:12

Ichiro 会話 03:43, 21 February 2008 (UTC) List of Advance Wars: Days of Ruin COs (edit | talk | history | protect | delete | links | watch | logs | views)...

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Wikipedia:Reference desk/Archives/Mathematics/2022 January 21
Kamis, 2023-03-16 21:25:57

from the norm being used for normalizing basis functions cos ⁡ ( 2 π P n x ) {\displaystyle \cos \left({\tfrac {2\pi }{P}}nx\right)} and sin ⁡ ( 2 π P n...

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Wikipedia:Reference desk/Archives/Mathematics/2015 May 14
Jumat, 2022-02-25 21:53:26

sin(x) cos(2*pi - x) = cos(x) sin(2*pi + x) = sin(x) cos(2*pi + x) = cos(x) sin(pi - x)= sin(x) cos(pi - x)= -cos(x) sin(pi + x) = -sin(x) cos(pi + x)...

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Wikipedia:Articles for deletion/List of Advance Wars COs
Rabu, 2026-01-07 19:15:09

delete. Yamamoto Ichiro 会話 00:33, 6 February 2008 (UTC) List of Advance Wars COs (edit | talk | history | protect | delete | links | watch | logs | views)...

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Wikipedia:Reference desk/Archives/Mathematics/2007 December 18
Sabtu, 2023-02-11 00:23:49

) − sin 2 ⁡ ( x ) = cos ⁡ ( 2 x ) {\displaystyle \dots =2\cos ^{2}(x)-1=\cos ^{2}(x)+\cos ^{2}(x)-1=\cos ^{2}(x)-\sin ^{2}(x)=\cos(2x)} --CiaPan (talk)...

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Wikipedia:Articles for deletion/Cos Ryan
Selasa, 2026-01-06 06:38:17

delete - WP:SNOW \ Backslash Forwardslash / {talk} 08:44, 14 June 2009 (UTC) Cos Ryan (edit | talk | history | protect | delete | links | watch | logs | views)...

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Wikipedia:Reference desk/Archives/Mathematics/2011 August 9
Kamis, 2023-03-09 22:42:08

= d cos ⁡ a {\displaystyle D={\frac {d}{\cos a}}} This gives me D = 2 U 2 cos ⁡ θ sin ⁡ ( θ − a ) g cos ⁡ a {\displaystyle D={\frac {2U^{2}\cos \theta...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 15
Jumat, 2022-02-25 21:40:12

2 cos ⁡ x + 2 cos ⁡ 2 x {\displaystyle {\frac {df(x)}{dx}}=2\cos x+2\cos 2x} 0 = 2 cos ⁡ x + 2 cos ⁡ 2 x {\displaystyle 0=2\cos x+2\cos 2x} 0 = cos ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2014 December 8
Jumat, 2022-02-25 21:50:46

sum of the cos and tan. -- ToE 20:11, 8 December 2014 (UTC) If the question about them being 'added together' is "cos(a+b) = cos(a) + cos(b)" or "tan(a+b)...

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Wikipedia:Articles for deletion/Coseer
Senin, 2025-12-01 00:14:34

modulo the article's author. -- RoySmith (talk) 14:06, 26 August 2017 (UTC) Coseer (edit | talk | history | protect | delete | links | watch | logs | views)...

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Wikipedia:Reference desk/Archives/Mathematics/2006 October 20
Selasa, 2022-02-22 15:28:43

principles, you need to use the formula cos ⁡ ( x + y ) = cos ⁡ x cos ⁡ y − sin ⁡ x sin ⁡ y {\displaystyle \cos(x+y)=\cos x\cos y-\sin x\sin y} , as well as the...

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Wikipedia:Reference desk/Archives/Mathematics/2013 November 24
Sabtu, 2022-02-26 10:32:27

⁡ α cos ⁡ β + cos ⁡ α sin ⁡ β {\displaystyle \sin(\alpha +\beta )=\sin \alpha \cos \beta +\cos \alpha \sin \beta } cos ⁡ ( α + β ) = cos ⁡ α cos ⁡ β −...

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Wikipedia:Reference desk/Archives/Mathematics/2013 February 10
Kamis, 2022-02-24 15:10:55

of mine. Multiply both sides by cos 20 cos 30 cos 10 cos 50 so that the entire identity deals only with sin and cos. Now using the product-to-sum formulas...

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Wikipedia:Reference desk/Archives/Mathematics/2012 November 6
Sabtu, 2023-02-11 00:46:18

0 π d x 1 + cos ⁡ ( α ) cos ⁡ ( x ) {\displaystyle {\frac {dI}{d\alpha }}=-\sin(\alpha )\ \int _{0}^{\pi }{\frac {dx}{1+\cos(\alpha )\cos(x)}}} Solve...

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Wikipedia:Reference desk/Archives/Mathematics/2021 February 13
Minggu, 2021-02-21 07:37:45

x ⋅ cos 3 ⁡ x {\displaystyle \sin 4x\cdot \cos ^{3}x} as 4 sin ⁡ x cos ⁡ x ( 2 cos 2 ⁡ x − 1 ) ⋅ cos 3 ⁡ x = {\displaystyle 4\sin x\cos x(2\cos ^{2}x-1)\cdot...

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Wikipedia:Reference desk/Archives/Mathematics/2012 February 20
Kamis, 2022-02-24 15:08:30

know it simplifies to "cos u + cos^2 u = 0" or "cos u + 1 - 2 sin^2 u = 0", but same with the first problem, can I simplify cos u out? How would I solve...

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Wikipedia:Reference desk/Archives/Mathematics/2020 December 6
Senin, 2020-12-14 07:07:00

surface, expressed as sin ⁡ x cos ⁡ y + sin ⁡ y cos ⁡ z + sin ⁡ z cos ⁡ x = 0 {\displaystyle \sin x\cos y+\sin y\cos z+\sin z\cos x=0} can be sliced horizontally...

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Wikipedia:Reference desk/Archives/Mathematics/2011 October 1
Kamis, 2023-03-09 22:38:40

solving cos(ax) = cos(bx) generally? WolframAlpha seemed to be able to come up with pretty exact results. See http://www.wolframalpha.com/input/?i=cos%289x%29%3Dcos%287x%29...

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Wikipedia:Reference desk/Archives/Mathematics/2007 December 12
Kamis, 2022-02-24 14:51:55

you're getting is: cos(cos(cos(cos(cos(cos(...))))))))) of a variable x. Let's call this whole expression y. So y = cos(cos(cos(cos(cos(...))))))) If you...

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Wikipedia:Reference desk/Archives/Mathematics/2008 January 4
Rabu, 2022-02-23 11:49:45

parametrically by ( − 2.4 cos ⁡ ( t ) + 0.6 cos ⁡ ( 4 t ) , − 2.4 sin ⁡ ( t ) + 0.6 sin ⁡ ( 4 t ) ) {\displaystyle {\bigg (}-2.4\cos(t)+0.6\cos(4t),-2.4\sin(t)+0...

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Wikipedia:Reference desk/Archives/Mathematics/2011 October 12
Jumat, 2022-02-25 21:44:08

arccos(sin(A1)cos(A2) + cos(A1)cos(A2)cos(Z1-Z2))?--Dacium (talk) 02:32, 13 October 2011 (UTC) You've got a typo so it should be arccos(sin(A1)sin(A2) + cos(A1)cos(A2)cos(Z1-Z2))...

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Wikipedia:Reference desk/Archives/Mathematics/2007 August 26
Kamis, 2022-02-24 14:51:47

integral: ((Integrate over a:0 to 2pi, b:-pi/2 to pi/2)) cos b (k - cos a cos b) da db / (k2+1 - 2k cos a cos b)3/2 Anyone know how if possible? (not an advanced...

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Wikipedia:Articles for deletion/Cos Cob Library
Senin, 2025-12-01 00:14:28

Library. (non-admin closure) CAPTAIN RAJU(T) 08:25, 21 September 2017 (UTC) Cos Cob Library (edit | talk | history | protect | delete | links | watch | logs |...

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Wikipedia:Reference desk/Archives/Mathematics/2010 September 29
Rabu, 2022-02-23 12:04:18

{x}}}(\cos {x}+i\sin {x})} cos ⁡ 2 x + i sin ⁡ 2 x 1 − cos ⁡ 2 x − i sin ⁡ 2 x {\displaystyle {\frac {\cos {2x}+i\sin {2x}}{1-\cos {2x}-i\sin {2x}}}} ( cos ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2007 May 30
Sabtu, 2023-02-11 00:24:59

know how 2 solve if its 2 cos x = 1 (cos x = 1/2, then cos^-1) but how to solve when its cos^2? cos^2 x = cos x^2 or = (cos x)^2 or what? —The preceding...

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Wikipedia:Articles for deletion/Cos Cob Elementary School
Senin, 2025-12-01 00:14:25

(non-admin closure) TheSandDoctor (talk) 06:05, 10 September 2017 (UTC) Cos Cob Elementary School (edit | talk | history | protect | delete | links |...

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Wikipedia:Reference desk/Archives/Mathematics/2006 November 18
Kamis, 2022-02-24 14:51:21

y)-\cos(y+\cos x).\,\!} Its gradient is ∇ f = [ cos ⁡ ( x − sin ⁡ y ) − sin ⁡ ( x ) sin ⁡ ( y + cos ⁡ x ) sin ⁡ ( y + cos ⁡ x ) − cos ⁡ ( y ) cos ⁡ ( x −...

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Wikipedia:Reference desk/Archives/Mathematics/2016 January 13
Rabu, 2016-01-20 11:10:01

the following trigonometry identity holds sin 2 ⁡ A + cos 2 ⁡ A = 1   {\displaystyle \sin ^{2}A+\cos ^{2}A=1\ } if A is 30i degrees? (Thirty imaginary degrees)...

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Wikipedia:Reference desk/Archives/Mathematics/2010 August 17
Kamis, 2022-02-24 15:01:36

⁡ x cos ⁡ x {\displaystyle \sin {x}\cos {x}} . We can therefore safely say they are both integrals of sin ⁡ x cos ⁡ x {\displaystyle \sin {x}\cos {x}}...

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Wikipedia:Reference desk/Archives/Mathematics/2012 January 19
Jumat, 2022-02-25 21:45:53

− x cos ⁡ ( x ) d x = ∫ e − x cos ⁡ ( − x ) d x {\displaystyle \int {e^{-x}\cos(x)dx}=\int {e^{-x}\cos(-x)dx}} , because cos {\displaystyle \cos } is...

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Wikipedia:Reference desk/Archives/Mathematics/2008 February 6
Jumat, 2022-02-25 21:31:53

\cos and \sin in LaTeX. It makes it look much better: cos ⁡ x + 1 + sin ⁡ x cos ⁡ x + 1 − sin ⁡ x = 1 + sin ⁡ x cos ⁡ x {\displaystyle {\frac {\cos x+1+\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2016 September 2
Sabtu, 2016-09-10 07:19:43

mislaid my answer; I think it's u 2 + v 2 − u v cos ⁡ α {\displaystyle u^{2}+v^{2}-{\frac {uv}{\cos \alpha }}} but have failed to confirm it, and can't...

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Wikipedia:Reference desk/Archives/Mathematics/2010 October 19
Kamis, 2023-03-09 22:42:14

{\frac {1+\cos 2x-i\sin 2x}{1-\cos 2x+i\sin 2x}}={\frac {1+\cos ^{2}x-\sin ^{2}x-2i\sin x\cos x}{1-\cos ^{2}x+\sin ^{2}x+2i\sin x\cos x}}} = 2 cos 2 ⁡ x −...

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Wikipedia:Reference desk/Archives/Mathematics/2014 August 10
Sabtu, 2022-02-26 10:08:10

stumped: I understand how they get tan α, and I understand how they get 1 / cos α, but how do they get tan β? - 110.20.126.106 (talk) 04:13, 10 August 2014...

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Wikipedia:Reference desk/Archives/Mathematics/2011 August 16
Jumat, 2022-02-25 21:41:46

X c + a cos ⁡ t cos ⁡ φ − b sin ⁡ t sin ⁡ φ {\displaystyle X(t)=X_{c}+a\,\cos t\,\cos \varphi -b\,\sin t\,\sin \varphi } Y ( t ) = Y c + a cos ⁡ t sin...

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Wikipedia:Reference desk/Archives/Mathematics/2007 March 31
Sabtu, 2023-03-25 14:32:52

Re(cos(x)cos(y) + i cos(x)sin(y) + i sin(x)cos(y) + i2sin(x)sin(y)) = Re(cos(x)cos(y) − sin(x)sin(y) + i(cos(x)sin(y) + sin(x)cos(y))) = cos(x)cos(y)...

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Wikipedia:Reference desk/Archives/Mathematics/2011 February 24
Rabu, 2022-02-23 12:06:27

function z(x,y)=sin(x)+cos(y)-sin(x)cos(y)". I knew that the answer was {z: -3≤z≤1} from lower math reasoning (since sin and cos are bounded on R -1 to...

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Wikipedia:Reference desk/Archives/Mathematics/2008 March 20
Kamis, 2022-02-24 14:56:34

tan(x) = 1 + sin 2 ⁡ x cos 2 ⁡ x sin 2 ⁡ x cos 2 ⁡ x {\displaystyle ={\frac {1+{\frac {\sin ^{2}x}{\cos ^{2}x}}}{\frac {\sin ^{2}x}{\cos ^{2}x}}}} Simplify...

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Wikipedia:Reference desk/Archives/Mathematics/2007 December 8
Kamis, 2023-05-18 09:06:58

cartesian by x = r cos ⁡ ϕ sin ⁡ θ , y = r cos ⁡ ϕ cos ⁡ θ , z = r sin ⁡ ϕ {\displaystyle x=r\cos \phi \sin \theta ,\;y=r\cos \phi \cos \theta ,\;z=r\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 1
Jumat, 2022-02-25 21:40:07

\left|{\begin{array}{cccc}\cos(t)&\sin(t)&t\cos(t)&t\sin(t)\\-\sin(t)&\cos(t)&\cos(t)-t\sin(t)&\sin(t)+t\cos(t)\\-\cos(t)&-\sin(t)&-2\sin(t)-t\cos(t)&2\cos...

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Wikipedia:Reference desk/Archives/Mathematics/2014 June 8
Sabtu, 2022-02-26 10:34:54

) = cos ⁡ ( π x 2 2 x 2 + 1 ) {\displaystyle f(x)=\cos \left({\frac {\pi x^{2}}{2x^{2}+1}}\right)} Gandalf61 (talk) 09:43, 8 June 2014 (UTC) 1 cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2011 March 6
Senin, 2026-03-09 20:32:43

1 − cos ⁡ θ 2 , cos 2 ⁡ θ = 1 + cos ⁡ θ 2 , sin ⁡ ( 2 θ ) = 2 sin ⁡ θ cos ⁡ θ , cos ⁡ ( 2 θ ) = cos 2 ⁡ θ − sin 2 ⁡ θ = 1 − 2 sin 2 ⁡ θ = 2 cos 2 ⁡ θ...

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Wikipedia:Reference desk/Archives/Mathematics/2022 March 16
Kamis, 2022-03-24 09:20:37

1 cos ⁡ b 1 + cos ⁡ a 1 sin ⁡ b 1 {\displaystyle \sin(a_{1}+b_{1})=\sin a_{1}\cos b_{1}+\cos a_{1}\sin b_{1}} cos ⁡ ( a 2 + b 2 ) = cos ⁡ a 2 cos ⁡ b...

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Wikipedia:Reference desk/Archives/Mathematics/2010 October 18
Kamis, 2023-02-09 05:20:07

→ 0 cos ⁡ ( sin ⁡ ( x ) cos ⁡ ( h ) + sin ⁡ ( h ) cos ⁡ ( x ) ) − cos ⁡ ( sin ⁡ ( x ) ) h = lim h → 0 cos ⁡ ( sin ⁡ ( x ) + h cos ⁡ ( x ) ) − cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2012 August 7
Rabu, 2022-02-23 12:11:33

gives p1, and the law of sines#spherical case gives A1 cos p1 = cos a1 cos b1 + sin a1 sin b1 cos P1 sin A1/sin a1 = sin P1/sin p1 Next consider triangle...

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Wikipedia:Reference desk/Archives/Mathematics/2014 April 24
Kamis, 2022-02-24 15:12:20

= ( 0 1 cos ⁡ θ − 1 0 sin ⁡ θ cos ⁡ θ sin ⁡ θ 0 ) {\displaystyle \mathbf {M} =\left({\begin{matrix}0&1&\cos \theta \\-1&0&\sin \theta \\\cos \theta &\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2024 March 22
Sabtu, 2024-04-06 09:00:09

is sin 2 ⁡ θ + cos 2 ⁡ θ = 1 {\displaystyle \sin ^{2}\theta +\cos ^{2}\theta =1} ? Why is that when you have the coordinates (sin, cos) you add them and...

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Wikipedia:Reference desk/Archives/Mathematics/2007 June 16
Kamis, 2022-02-24 14:52:38

= ∫ sin ⁡ x cos ⁡ x sin ⁡ x d x = ∫ ( 1 2 sin ⁡ x + cos ⁡ x cos ⁡ x sin ⁡ x + 1 2 sin ⁡ x − cos ⁡ x cos ⁡ x sin ⁡ x ) d x = ∫ ( 1 2 cos ⁡ x + sin ⁡ x...

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Wikipedia:Reference desk/Archives/Mathematics/2011 September 26
Senin, 2023-02-27 18:02:32

y = cos ⁡ ( t ) − d 2 y d t 2 {\displaystyle y=\cos(t)-{\frac {d^{2}y}{dt^{2}}}} implies that cos ⁡ ( t ) = y + d 2 y d t 2 {\displaystyle \cos(t)=y+{\frac...

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Wikipedia:Reference desk/Archives/Mathematics/2017 July 15
Sabtu, 2017-07-22 08:30:22

the derivative of arctan ⁡ ( sin ⁡ ( x ) cos ⁡ ( x ) + c ) {\displaystyle \arctan \left({\frac {\sin(x)}{\cos(x)+c}}\right)} while x {\displaystyle x}...

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Wikipedia:Reference desk/Archives/Mathematics/2012 June 15
Kamis, 2023-03-09 22:38:38

cos {\displaystyle \cos } and cos − 1 {\displaystyle \cos ^{-1}} by the equation T n ( x ) = cos ⁡ ( n ⋅ cos − 1 ⁡ x ) {\displaystyle T_{n}(x)=\cos(n\cdot...

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Wikipedia:Reference desk/Archives/Mathematics/2012 February 9
Senin, 2022-05-09 22:48:21

t , y = a sin ⁡ θ cos ⁡ t + b cos ⁡ θ sin ⁡ t {\displaystyle x=a\cos \theta \cos t-b\sin \theta \sin t,\,y=a\sin \theta \cos t+b\cos \theta \sin t} and...

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Wikipedia:Reference desk/Archives/Mathematics/2009 May 5
Selasa, 2022-02-22 15:24:14

It may be best to think of the factors of cos ⁡ α {\displaystyle \cos \alpha } and cos ⁡ θ {\displaystyle \cos \theta } as arising from the Jacobian to...

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Wikipedia:Reference desk/Archives/Mathematics/2022 June 16
Sabtu, 2022-06-25 08:04:58

have 1 − 2 cos ⁡ π 5 + 2 cos ⁡ 2 π 5 = 1 + 2 cos ⁡ 2 π 5 + 2 cos ⁡ 4 π 5 = sin ⁡ π sin ⁡ π 5 = 0. {\displaystyle 1-2\cos {\tfrac {\pi }{5}}+2\cos {\tfrac...

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Wikipedia:Reference desk/Archives/Mathematics/2012 March 25
Jumat, 2026-01-23 13:13:26

I have got: Define v = ( a r cos ⁡ θ , b r sin ⁡ θ ) {\displaystyle v=(ar\cos \theta ,br\sin \theta )} ∂ v ∂ r = ( a cos ⁡ θ , b sin ⁡ θ ) {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2009 September 12
Kamis, 2022-02-24 15:01:12

{\displaystyle f(x)} . It is true that cos ⁡ ( x ) = R e { e i x } {\displaystyle \cos(x)=Re\{e^{ix}\}} ; however ∫ cos ⁡ ( x ) e − i k x d x = ∫ R e { e i...

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Wikipedia:Reference desk/Archives/Mathematics/2009 September 1
Jumat, 2022-02-25 19:36:20

up to sign: tan ⁡ θ = ± 1 − cos 2 ⁡ θ cos ⁡ θ   . {\displaystyle \tan \theta =\pm {\frac {\sqrt {1-\cos ^{2}\theta }}{\cos \theta }}\ .} If you're trying...

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Wikipedia:Reference desk/Archives/Mathematics/2022 August 6
Minggu, 2022-08-14 07:58:54

rule, then one would get lim x → 0 cos ⁡ x 1 = cos ⁡ 0 = 1 {\displaystyle \lim _{x\to 0}{\frac {\cos {x}}{1}}=\cos {0}=1} . However, proving that the...

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Wikipedia:Reference desk/Archives/Mathematics/2007 December 24
Rabu, 2022-02-23 11:43:33

cos ⁡ α ) {\displaystyle r(1-\cos \alpha )} above ground. Thus we have B D = r ( 1 − cos ⁡ α ) sin ⁡ α {\displaystyle \mathrm {BD} ={\frac {r(1-\cos \alpha...

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Wikipedia:Reference desk/Archives/Mathematics/2024 May 31
Minggu, 2024-06-16 07:16:43

Hi y'all. M ( φ ) d φ = ( a b ) 2 ( ( a cos ⁡ φ ) 2 + ( b sin ⁡ φ ) 2 ) 3 2 d φ = ( a sin ⁡ β ) 2 + ( b cos ⁡ β ) 2 d β = ? ? ( β ) d β . {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2006 July 2
Selasa, 2025-01-14 10:44:19

(v2/r + g cos θ) dθ ½ v2 = ½ (v0)2 - gr(1 - cos θ) - μk r∫0θ (v2/r + g cos θ) dθ [v(θ)]2 = (v0)2 - 2gr(1 - cos θ) - 2μk r∫0θ ([v(θ)]2/r + g cos θ) dθ ....

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Wikipedia:Reference desk/Archives/Mathematics/2012 February 28
Kamis, 2023-03-09 22:39:46

α cos ⁡ β ± sin ⁡ β cos ⁡ α , {\displaystyle \sin(\alpha \pm \beta )=\sin \alpha \cos \beta \pm \sin \beta \cos \alpha \,,} cos ⁡ ( γ ± δ ) = cos ⁡ γ...

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Wikipedia:Reference desk/Archives/Mathematics/2014 June 2
Sabtu, 2022-02-26 10:34:44

ρ cos ⁡ θ {\displaystyle x=\rho \cos \theta } y = ρ sin ⁡ θ {\displaystyle y=\rho \sin \theta } and simplify using wolframalpha [1] ρ 8 45 + 8 cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2010 April 21
Senin, 2023-02-27 18:07:57

cosines: a = cos ⁡ x {\displaystyle a=\cos x} b = sin ⁡ x {\displaystyle b=\sin x} c = a cos ⁡ y = cos ⁡ x cos ⁡ y {\displaystyle c=a\cos y=\cos x\cos y} d =...

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Wikipedia:WikiProject Spam/Local/hill16.ie
Minggu, 2014-01-26 04:13:46

blacklist. Link is not on the whitelist. Link is not on the monitor list. Cos Eile (talk · contribs · deleted contribs · blacklist hits · Edit filter search ·...

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Wikipedia:Reference desk/Archives/Mathematics/2014 December 19
Rabu, 2022-02-23 12:18:20

Does ∑ n = 0 ∞ ( − 1 ) n cos ⁡ ( z n ) {\displaystyle \sum _{n=0}^{\infty }(-1)^{n}\cos(z^{n})} have any meaning? I do know that I can identify it with...

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Wikipedia:Reference desk/Archives/Mathematics/2012 October 26
Rabu, 2022-02-23 12:13:59

Semi-major axis will be r cos ⁡ θ {\displaystyle {\frac {r}{\cos \theta }}} . The eccentricity of an ellipse is 1 − b 2 a 2 = 1 − r 2 r 2 cos 2 ⁡ θ = | sin ⁡ θ...

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Wikipedia:Reference desk/Archives/Mathematics/2014 November 21
Jumat, 2022-02-25 21:52:05

x cos ⁡ ( x ) + ∫ e x cos ⁡ ( x ) d x = − e x cos ⁡ ( x ) + e x sin ⁡ ( x ) − ∫ e x sin ⁡ ( x ) d x {\displaystyle \int e^{x}\sin(x)dx=-e^{x}\cos(x)+\int...

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Wikipedia:Reference desk/Archives/Mathematics/2008 January 16
Sabtu, 2023-02-11 00:27:03

to the graph of f(x) = cos x that can be used to approximate the value of cos(π/6 + 0.1). Then, find an approximation of cos(π/6 + 0.1)." Tangent-line...

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Wikipedia:Reference desk/Archives/Mathematics/2012 August 25
Rabu, 2022-02-23 12:11:18

_{0}^{x}\left({\frac {\sin(Nt)\cos(t/2)}{\sin(t/2)}}+\cos(Nt)-1\right)dt} = 1 2 ∫ 0 x ( sin ⁡ ( N t ) cos ⁡ ( t / 2 ) sin ⁡ ( t / 2 ) + cos ⁡ ( N t ) − 1 ) d t {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2012 February 2
Sabtu, 2023-03-25 12:29:41

= cos 2 ⁡ ( o ε ) + ( cos ⁡ ( A ) sin ⁡ ( σ ) sin ⁡ ( o ε ) ) 2 | {\displaystyle C'(\mathrm {A} ,\sigma )={\sqrt {\cos ^{2}(o\!\varepsilon )+(\cos(\mathrm...

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Wikipedia:Reference desk/Archives/Mathematics/2010 July 30
Kamis, 2023-03-09 22:48:14

I've also tried sin 2 ⁡ x cos 2 ⁡ x = ( sin ⁡ x cos ⁡ x ) 2 = ( sin ⁡ 2 x 2 ) 2 {\displaystyle \sin ^{2}x\cos ^{2}x=(\sin x\cos x)^{2}=({\frac {\sin 2x}{2}})^{2}}...

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Wikipedia:Reference desk/Archives/Mathematics/2009 March 19
Jumat, 2022-02-25 21:36:28

correctly, pma says that ∑ 1 ≤ k ≤ n log ⁡ cos ⁡ ( k 2 n 5 s ) {\displaystyle \textstyle \sum _{1\leq k\leq n}\log \cos(k^{2}{\sqrt {n^{5}}}s)} converges pointwise...

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Wikipedia:Reference desk/Archives/Mathematics/2010 October 8
Minggu, 2023-03-05 22:04:17

that 1 + cos ⁡ x + i sin ⁡ x 1 + cos ⁡ x − i sin ⁡ x = cos ⁡ x + i sin ⁡ x {\displaystyle {\frac {1+\cos x+i\sin x}{1+\cos x-i\sin x}}=\cos x+i\sin x}...

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Wikipedia:Reference desk/Archives/Mathematics/2014 August 25
Sabtu, 2022-02-26 10:33:20

function cos(mφ) where function cos(mφ) is in fact defined on the whole circumference: ∫ 0 n {\displaystyle \int \limits _{0}^{n}} f(φ)cos(mφ) dφ        (1)...

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Wikipedia:Reference desk/Archives/Mathematics/2008 February 24
Rabu, 2022-02-23 11:49:13

, y ) ↦ ( x cos ⁡ θ − y sin ⁡ θ , x sin ⁡ θ + y cos ⁡ θ ) . {\displaystyle (x,y)\mapsto (x\cos \theta -y\sin \theta ,x\sin \theta +y\cos \theta )\,.}...

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Wikipedia:Reference desk/Archives/Mathematics/2009 May 31
Jumat, 2022-02-25 21:36:49

1 June 2009 (UTC) cos 2 ⁡ ( x ) {\displaystyle \cos ^{2}(x)} is an abuse of notation. (cos(x))2 is far more common than cos(cos(x)), so it gets the...

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Wikipedia:Reference desk/Archives/Mathematics/2022 November 3
Minggu, 2022-11-13 07:11:45

these gives us x : y : z = cos ⁡ ι cos ⁡ λ : cos ⁡ ι sin ⁡ λ : sin ⁡ ι sin ⁡ λ . {\displaystyle x:y:z=\cos \iota \cos \lambda :\cos \iota \sin \lambda :\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2011 September 18
Jumat, 2022-02-25 21:44:24

and multiplying by 2 cos 2 ⁡ θ {\displaystyle 2\cos ^{2}\theta } gives the simpler equation 0 = − z 2 + 2 z sin ⁡ θ cos ⁡ θ + 2 b cos 2 ⁡ θ . {\displaystyle...

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Wikipedia:WikiProject Spam/LinkReports/damaisec.moe.edu.sg
Sabtu, 2009-07-04 14:31:11

www.damaisec.moe.edu.sg/cos/o.x?c=/wbn/pagetree&func=view&rid=12317. * Links added in this diff: www.damaisec.moe.edu.sg/cos/o.x?c=/wbn/pagetree&func=view&rid=12317...

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Wikipedia:Reference desk/Archives/Mathematics/2012 August 26
Sabtu, 2022-02-26 10:28:57

but try writing cos ⁡ ( x ) = 1 − 2 sin 2 ⁡ ( x / 2 ) {\displaystyle \cos(x)=1-2\sin ^{2}(x/2)} so the integral becomes: ∫ 0 ∞ cos ⁡ ( x ) − 1 x 2 d...

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Wikipedia:Reference desk/Archives/Mathematics/2011 November 19
Kamis, 2023-03-09 22:45:27

Define f ( x ) := { cos ⁡ ( 1 x ) x ≠ 0 0 x = 0 {\displaystyle f(x):=\left\{{\begin{array}{ll}\cos \left({\frac {1}{x}}\right)&x\neq 0\\0&x=0\end{array}}\right...

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Wikipedia:Reference desk/Archives/Mathematics/2017 November 25
Kamis, 2025-01-09 17:27:05

formula: cos ⁡ α n = cos ⁡ α + − 1 sin ⁡ α n + cos ⁡ α − − 1 sin ⁡ α n 2 {\displaystyle \cos {\frac {\alpha }{n}}={\frac {{\sqrt[{n}]{\cos \alpha +{\sqrt...

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Wikipedia:Reference desk/Archives/Mathematics/2012 February 23
Sabtu, 2023-02-11 00:44:40

involved, then use the identity cos ⁡ ( A − B ) = cos ⁡ A cos ⁡ B + sin ⁡ A sin ⁡ B {\displaystyle \cos {(A-B)}=\cos {A}\cos {B}+\sin {A}\sin {B}} . --Kinu t/c...

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Wikipedia:Reference desk/Archives/Mathematics/2013 June 6
Selasa, 2022-05-31 00:35:24

then |cos x - cos y| = |x-y| and you've got a poor exam writer. To prove |cos x - cos y| <= |x-y|, set x = A-B and y = A+B. then cos x - cos y = 2 sin...

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Wikipedia:Reference desk/Archives/Mathematics/2010 August 26
Kamis, 2023-03-09 22:42:27

( x 2 ) cos ⁡ ( x 2 ) ) = 1 2 cos 2 ( x 2 ) + 1 2 sin 2 ( x 2 ) cos 2 ( x 2 ) = 1 2 ( cos 2 ( x 2 ) + sin 2 ( x 2 ) cos 2 ( x 2 ) ) = 1 2 cos 2 ( x 2...

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Wikipedia:Reference desk/Archives/Mathematics/2016 December 6
Selasa, 2016-12-13 09:40:11

- cos ⁡ ( 5 θ ) = 16 cos 5 ⁡ ( θ ) − 20 cos 3 ⁡ ( θ ) + 5 cos ⁡ ( θ ) {\displaystyle \cos(5\theta )=16\cos ^{5}(\theta )-20\cos ^{3}(\theta )+5\cos(\theta...

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Wikipedia:Reference desk/Archives/Mathematics/2011 March 23
Rabu, 2022-02-23 12:08:41

= cos ⁡ ( y + x 2 ) sin ⁡ ( y − x 2 ) ⟹ | x − y | = | cos ⁡ ( y + x 2 ) sin ⁡ ( y − x 2 ) | = | cos ⁡ ( y + x 2 ) | ⋅ | sin ⁡ ( y − x 2 ) | ≤ | cos ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 8
Rabu, 2022-02-23 12:02:57

⁡ ( sin ⁡ ( t ) ) ) = 1 − cos ⁡ ( t ) cos ⁡ ( sin ⁡ ( t ) ) {\displaystyle {\frac {d}{dt}}(t-\sin(\sin(t)))=1-\cos(t)\cos(\sin(t))} which is 0 at t=0...

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Wikipedia:Reference desk/Archives/Mathematics/2007 January 8
Jumat, 2022-02-25 21:28:59

[ cos ⁡ θ − sin ⁡ θ sin ⁡ θ cos ⁡ θ ] [ cos ⁡ θ − sin ⁡ θ sin ⁡ θ cos ⁡ θ ] = [ cos 2 ⁡ θ − sin 2 ⁡ θ − 2 cos ⁡ θ sin ⁡ θ 2 cos ⁡ θ sin ⁡ θ cos 2 ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2007 June 4
Kamis, 2022-02-24 14:52:48

s 2 (     cos ⁡ ( log ⁡ s ) + sin ⁡ ( log ⁡ s ) ) {\displaystyle x(s)={\frac {s}{2}}(\ \ \cos(\log s)+\sin(\log s))\,} y ( s ) = s 2 ( − cos ⁡ ( log ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2013 September 7
Sabtu, 2022-02-26 10:32:47

given by ∫ disc cos ⁡ θ r 2 d A = ∫ − π / 2 π / 2 ∫ 0 2 R cos ⁡ θ r cos ⁡ θ r 3 r d r d θ {\displaystyle \int _{\text{disc}}{\frac {\cos \theta }{r^{2}}}\...

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Wikipedia:Reference desk/Archives/Mathematics/2009 May 8
Sabtu, 2023-03-25 13:58:56

sin(270) = sin(360-90) = sin(360)*cos(90) - cos(360)*sin(90) = 0 - (+1) = -1. Similarly, cos(a + b) = cos(a)*cos(b) - sin(a)*sin(b). Therefore, if x...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 29
Rabu, 2022-02-23 12:02:45

cos ⁡ x d x {\displaystyle du=\cos x\,dx} v = − cos ⁡ x {\displaystyle v=-\cos x\,} Now integrate by parts: ∫ u d v = u v − ∫ v d u = − sin ⁡ x cos ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2013 May 9
Rabu, 2022-02-23 12:16:39

cos 2 ⁡ ( x ) = 1 − cos 2 ⁡ ( x ) cos 2 ⁡ ( x ) = 1 cos 2 ⁡ ( x ) − 1 {\displaystyle \tan ^{2}(x)={\frac {\sin ^{2}(x)}{\cos ^{2}(x)}}={\frac {1-\cos...

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Wikipedia:Reference desk/Archives/Mathematics/2007 June 17
Jumat, 2026-01-23 12:49:29

r cos ⁡ θ z ′ r cos ⁡ θ − r sin ⁡ θ = z ′ sin ⁡ θ + cos ⁡ θ z ′ cos ⁡ θ − sin ⁡ θ . {\displaystyle {\frac {z'r\sin \theta +r\cos \theta }{z'r\cos \theta...

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Wikipedia:Reference desk/Archives/Mathematics/2007 October 13
Kamis, 2022-02-24 14:53:57

deg) = cos(45 deg) cancels out: tan(47 deg) = (sin(45 deg)cos(2 deg) + cos(45 deg)sin(2 deg))/(cos(45 deg)cos(2 deg) - sin(45 deg)sin(2 deg)) = (cos(2 deg)...

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Wikipedia:Reference desk/Archives/Mathematics/2015 October 21
Rabu, 2015-10-28 08:19:30

three to be calculated from the other two? My guess is that it is Cos^2(a)+Cos^2(b)+Cos^2(c)=1, but I'm not sure of any examples that would show that other...

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Wikipedia:Reference desk/Archives/Mathematics/2016 April 2
Minggu, 2016-04-10 07:00:52

general. Eliminating α5, there are two other conditions: 1 - cosα1+cos(α1+α2)-cos(α1+α2+α3)+cos(α1+α2+α3+α4)=0 and sinα1-sin(α1+α2)+sin(α1+α2+α3)-sin(α1+α2+α3+α4)=0...

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Wikipedia:Reference desk/Archives/Mathematics/2014 March 20
Sabtu, 2023-02-11 00:47:48

r cos ⁡ ψ ψ ′ {\displaystyle I'=2rr'-2r'\sin \psi -2r\cos \psi \psi '} = 2 r cos ⁡ ψ − 2 cos ⁡ ψ sin ⁡ ψ − 2 r cos ⁡ ψ ψ ′ {\displaystyle =2r\cos \psi...

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Wikipedia:WikiProject Geographical coordinates
Selasa, 2026-06-23 01:25:44

180 cos ⁡ ( θ ) ( 6378.14 2 cos ⁡ θ ) 2 + ( 6356.8 2 sin ⁡ θ ) 2 ( 6378.14 cos ⁡ θ ) 2 + ( 6356.8 sin ⁡ θ ) 2 {\displaystyle k={\frac {\pi }{180}}\cos(\theta...

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Wikipedia:Reference desk/Archives/Mathematics/2010 July 5
Kamis, 2022-02-24 15:02:59

the integral into ∫ 2 sin ⁡ u cos ⁡ u sin 2 ⁡ u cos ⁡ u d u {\displaystyle \int {\frac {2\sin u\cos u}{\sin ^{2}u\cos u}}du} , which is on any integration...

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Wikipedia:Reference desk/Archives/Mathematics/2022 June 12
Senin, 2022-06-20 07:23:09

spherical analogue of Pythagoras' theorem, cos ⁡ c / R = cos ⁡ a / R cos ⁡ b / R {\displaystyle \cos c/R=\cos a/R\cos b/R} , where R is the radius of the earth...

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Wikipedia:Reference desk/Archives/Mathematics/2010 September 30
Jumat, 2022-05-20 02:08:14

cos ⁡ 3 x = 4 cos 3 ⁡ x − 3 cos ⁡ x {\displaystyle \cos {3x}=4\cos ^{3}{x}-3\cos {x}} . The problem is trivially easy if you allow the identity cos ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2011 April 15
Selasa, 2025-08-26 03:40:05

the list is cos ⁡ 4 x + cos ⁡ 3 x + cos ⁡ 2 x sin ⁡ 4 x + sin ⁡ 3 x + sin ⁡ 2 x = cot ⁡ 3 x . {\displaystyle {\frac {\cos 4x+\cos 3x+\cos 2x}{\sin 4x+\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2011 February 28
Kamis, 2023-03-09 22:46:33

I = − e x cos ⁡ x + e x sin ⁡ x + e x cos ⁡ x − ∫ e x cos ⁡ x d ⁡ x . {\displaystyle I=-e^{x}\cos x+e^{x}\sin x+e^{x}\cos x-\int \!e^{x}\cos x\,\operatorname...

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Wikipedia:Reference desk/Archives/Mathematics/2014 September 26
Sabtu, 2022-02-26 10:36:08

mentioned: A close approximation to cos(pix/2) for x in [0,1] is H ( x ) = 1 − x 2 x + ( 1 − x ) 2 − x 3 ( 8 ) ≈ cos ⁡ ( π 2 x ) ( 9 ) {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2009 June 1
Sabtu, 2023-03-25 16:04:00

= cos ⁡ ( x ) cos ⁡ ( y ) − sin ⁡ ( x ) sin ⁡ ( y ) , {\displaystyle \cos(x+y)=\cos(x)\cos(y)-\sin(x)\sin(y),\,} sin ⁡ ( x + y ) = sin ⁡ ( x ) cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2014 January 12
Sabtu, 2022-02-26 10:33:58

n → ∞ ∫ 1 n n 1 2 − cos ⁡ x x   d x = γ {\displaystyle \lim _{n\to \infty }\int _{\frac {1}{n}}^{n}{\dfrac {{\frac {1}{2}}-\cos x}{x}}\ dx=\gamma } —...

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Wikipedia:Reference desk/Archives/Mathematics/2025 March 2
Senin, 2025-03-17 07:27:54

segment is ((R1.cos(a) − u)^2 + (R1.sin(a) − v)^2)^0.5 = ((R1.cos(a) − x2.cos(a))^2 + (R1.sin(a) − x2.sin(a))^2)^0.5 = ((R1 − x2)^2.cos^2(a) + (R1 − x2)^2...

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Wikipedia:Reference desk/Archives/Mathematics/2024 August 30
Sabtu, 2024-09-14 09:07:52

columns ( 1 , cos ⁡ π n , cos ⁡ 2 π n , ⋯ cos ⁡ ( n − 1 π n ) {\displaystyle (1,\cos {\tfrac {\pi }{n}},\cos {\tfrac {2\pi }{n}},\cdots \cos {\tfrac {(n-1\pi...

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Wikipedia:Reference desk/Archives/Mathematics/2022 June 18
Minggu, 2022-06-26 07:05:46

lengths, cos ⁡ ϕ 1 ( λ 2 − λ 1 ) R {\displaystyle \cos \phi _{1}(\lambda _{2}-\lambda _{1})R} and cos ⁡ ϕ 2 ( λ 2 − λ 1 ) R . {\displaystyle \cos \phi _{2}(\lambda...

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Wikipedia:Reference desk/Archives/Mathematics/2014 May 22
Sabtu, 2022-02-26 10:35:14

{\bigg (}x+{\frac {\pi }{2}}{\bigg )},} and cos ′ ⁡ x = cos ⁡ ( x + π 2 ) . {\displaystyle \cos 'x=\cos {\bigg (}x+{\frac {\pi }{2}}{\bigg )}.} But since...

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Wikipedia:Reference desk/Archives/Mathematics/2010 August 11
Sabtu, 2023-02-11 00:34:58

Given z = 1 2 ( cos ⁡ θ + i sin ⁡ θ ) {\displaystyle z={\frac {1}{2}}(\cos \theta +i\sin \theta )} show that the imaginary part of the infinite series...

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Wikipedia:Reference desk/Archives/Mathematics/2010 March 28
Rabu, 2022-02-23 12:02:17

cos 6 ⁡ x d x {\displaystyle \int \sin ^{4}x\cos ^{6}x\;dx} without the use of general ∫ sin m ⁡ x cos n ⁡ x d x {\displaystyle \int \sin ^{m}x\cos ^{n}x\;dx}...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 30
Senin, 2023-02-27 18:06:48

( x ) = cos ⁡ ( x ) + i sin ⁡ ( x ) {\displaystyle e^{ix}=cis(x)=\cos(x)+i\sin(x)} then if you replace x with -x e − i x = c i s ( − x ) = cos ⁡ ( − x...

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Wikipedia:Reference desk/Archives/Mathematics/2012 June 2
Jumat, 2022-02-25 21:46:17

) = 0 {\displaystyle u(0)=0} and 2 ( u ′ ) 2 = 3 + cos ⁡ ( 2 u ) {\displaystyle 2(u')^{2}=3+\cos(2u)} . How do I go about it? (For an artwork based on...

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Wikipedia:Reference desk/Archives/Mathematics/2009 January 27
Sabtu, 2023-02-11 00:31:14

^{2}x)^{2}\cos ^{2}x\,dx=\int _{0}^{\pi /4}(1-\cos ^{2}x)^{2}\cos ^{2}x\,dx\\&=\int _{0}^{\pi /4}(1-2\cos ^{2}x+\cos ^{4}x)\cos ^{2}x\,dx=\int _{0}^{\pi /4}\cos...

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Wikipedia:Reference desk/Archives/Mathematics/2012 December 14
Jumat, 2022-02-25 21:45:16

mean 12 ⋅ (cos(4x)), and may also be written 12 cos 4x. 2: Reading between the lines, you mean: "y = 3 sin 4x, so y′ = 4 ⋅ 3 cos 4x = 12 cos 4x, right...

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Wikipedia:Reference desk/Archives/Mathematics/2010 July 8
Jumat, 2022-02-25 21:39:35

∫ 0 1 cos ⁡ ( π y ) f ( y ) d y − cos ⁡ ( π x ) ∫ 0 1 sin ⁡ ( π y ) f ( y ) d y . {\displaystyle \sin(\pi x)\int _{0}^{1}\cos(\pi y)f(y)dy-\cos(\pi x)\int...

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Wikipedia:Reference desk/Archives/Mathematics/2011 September 28
Kamis, 2023-03-09 22:50:08

y = cos ⁡ ( t ) − d 2 y d t 2 {\displaystyle y=\cos(t)-{\frac {d^{2}y}{dt^{2}}}} implies that cos ⁡ ( t ) = y + d 2 y d t 2 {\displaystyle \cos(t)=y+{\frac...

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Wikipedia:Reference desk/Archives/Mathematics/2007 October 11
Jumat, 2022-02-25 21:30:12

r cos ⁡ ( α ) {\displaystyle y=-r\cos(\alpha )\,} therefore using sine rule, sin ⁡ β = r − r cos ⁡ ( α ) + x x 2 + ( x + r ) 2 − 2 r ( r + x ) cos ⁡ α...

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Wikipedia:Reference desk/Archives/Mathematics/2024 August 23
Sabtu, 2024-09-07 08:27:30

1 4 ln ⁡ ( 1 + cos ⁡ ( x ) 1 − cos ⁡ ( x ) ) {\displaystyle {\frac {1}{4}}\ln({\frac {1+\cos(x)}{1-\cos(x)}})} Or 1 2 tanh − 1 ⁡ ( cos ⁡ ( x ) ) {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2009 October 30
Senin, 2023-01-30 16:23:56

( k π cos ⁡ ( θ ) ) − cos ⁡ ( θ ) cos ⁡ ( k π cos ⁡ ( θ ) ) + cos ⁡ ( θ ) cos ⁡ ( k π ) = 0 {\displaystyle k\pi \sin ^{2}(\theta )\sin(k\pi \cos(\theta...

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Wikipedia:Reference desk/Archives/Mathematics/2018 December 30
Senin, 2019-01-07 09:38:19

sin ⁡ x x = cos ⁡ x 2 ⋅ cos ⁡ x 4 ⋅ cos ⁡ x 8 ⋯ {\displaystyle {\frac {\sin x}{x}}=\cos {\frac {x}{2}}\cdot \cos {\frac {x}{4}}\cdot \cos {\frac {x}{8}}\cdots...

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Wikipedia:Reference desk/Archives/Mathematics/2006 October 21
Rabu, 2022-02-23 11:42:41

Hebrew! ( cos ⁡ θ − sin ⁡ θ sin ⁡ θ cos ⁡ θ ) ( cos ⁡ − θ − sin ⁡ − θ sin ⁡ − θ cos ⁡ − θ ) = ( 1 0 0 1 ) {\displaystyle {\begin{pmatrix}\cos {\theta }&-\sin...

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Wikipedia:Featured article review/Tumbler Ridge/archive1
Minggu, 2025-06-01 07:15:48

week. Cos (X + Z) 21:44, 9 March 2025 (UTC) Resolved uncited statements and remove WP:OR from lead. Cos (X + Z) 19:10, 10 March 2025 (UTC) @CosXZ: Thanks...

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Wikipedia:Reference desk/Archives/Mathematics/2018 May 6
Senin, 2018-05-14 09:47:28

of cosines ratios a cos ⁡ A = b cos ⁡ B = c cos ⁡ C   {\displaystyle {\frac {a}{\cos A}}\,=\,{\frac {b}{\cos B}}\,=\,{\frac {c}{\cos C}}\ } ?--82.137.13...

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Wikipedia:Good article reassessment/Marshall Islands at the Olympics/1
Rabu, 2025-01-01 23:21:39

saving this GA. Cos (X + Z) 17:24, 27 December 2024 (UTC) @Z1720 I have updated the article. Do you have any other suggestions? Cos (X + Z) 23:08, 27...

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Wikipedia:Reference desk/Archives/Mathematics/2008 December 30
Rabu, 2022-02-23 11:48:37

0 b cos ⁡ ( θ t ) − cos ⁡ ( t ) t d t = ∫ 0 b cos ⁡ ( θ t ) − 1 t d t − ∫ 0 b cos ⁡ ( t ) − 1 t d t = ∫ 0 b θ cos ⁡ ( t ) − 1 t d t − ∫ 0 b cos ⁡ ( t...

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Wikipedia:Reference desk/Archives/Mathematics/2022 December 21
Sabtu, 2022-12-31 10:13:02

( θ − sin ⁡ θ ) / π ≈ 0.72257 / 3.14159 ≈ 0.23000 cos ⁡ ( θ / 2 ) ≈ cos ⁡ 0.85627 ≈ 0.65526 2 R cos ⁡ ( θ / 2 ) ≈ 2 × 0.56419 × 0.65526 ≈ 0.73938 {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2014 February 23
Sabtu, 2022-02-26 10:33:46

(talk) 20:49, 23 February 2014 (UTC) Er, division? So long as N cos ⁡ α ≠ 0 {\displaystyle N\cos \alpha \neq 0} … --Tardis (talk) 21:55, 23 February 2014 (UTC)...

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Wikipedia:Reference desk/Archives/Mathematics/2014 November 26
Jumat, 2022-02-25 21:52:09

= cos ⁡ ( u ) cos ⁡ ( 2 v ) {\displaystyle w=\cos(u)\cos(2v)} x = cos ⁡ ( u ) sin ⁡ ( 2 v ) {\displaystyle x=\cos(u)\sin(2v)} y = sin ⁡ ( u ) cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2023 March 8
Kamis, 2023-03-16 09:13:08

+ 4 β 2 cos ⁡ ( 4 ξ ) cosh ⁡ ( 4 η ) + 6 β 3 cos ⁡ ( 6 ξ ) cosh ⁡ ( 6 η ) . {\displaystyle 2\beta _{1}\cos(2\xi )\cosh(2\eta )+4\beta _{2}\cos(4\xi )\cosh(4\eta...

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Wikipedia:WikiProject Spam/LinkReports/silicon.fastnet.co.uk
Rabu, 2009-08-26 13:00:23

uk/specialist-car/cos/Brochure.pdf (5, 5, 5, 1) silicon.fastnet.co.uk/specialist-car/cos/model.jpg (5, 5, 5, 1) silicon.fastnet.co.uk/specialist-car/cos/costinprod...

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Wikipedia:Reference desk/Archives/Mathematics/2012 July 8
Jumat, 2022-05-20 15:16:56

{\omega }}} with ω = ( ϕ ˙ sin ⁡ θ sin ⁡ ψ + θ ˙ cos ⁡ ψ ϕ ˙ sin ⁡ θ cos ⁡ ψ − θ ˙ sin ⁡ ψ ϕ ˙ cos ⁡ θ + ψ ˙ ) {\displaystyle {\boldsymbol {\omega }}={\bigl...

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Wikipedia:Reference desk/Archives/Mathematics/2015 May 26
Senin, 2015-06-01 07:04:47

+ 2 3 cos ⁡ θ 1 3 − 1 3 cos ⁡ θ + 1 3 sin ⁡ θ 1 3 − 1 3 cos ⁡ θ − 1 3 sin ⁡ θ 1 3 − 1 3 cos ⁡ θ − 1 3 sin ⁡ θ 1 3 + 2 3 cos ⁡ θ 1 3 − 1 3 cos ⁡ θ + 1...

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Wikipedia:Reference desk/Archives/Mathematics/2013 September 20
Rabu, 2022-02-23 12:17:27

distributed noise process. I would like to model the evolution of cos ⁡ θ {\displaystyle \cos \theta } , using the runge-kutta method. Given the stochastic...

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Wikipedia:Reference desk/Archives/Mathematics/2017 January 5
Kamis, 2017-01-12 09:33:02

5 January 2017 (UTC) Substitute that into the formula cos 2A = 1 - 2 sin2A and you get: cos {0, π / 3, π / 2, 2π / 3, π} is {2/2, 1/2, 0/2, -1/2, -2/2}...

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Wikipedia:Reference desk/Archives/Mathematics/2022 June 27
Selasa, 2022-07-05 07:28:20

2022 (UTC) Using cos ⁡ x = e i x + e − i x 2 , {\displaystyle \cos x={\frac {e^{ix}+e^{-ix}}{2}},} we have that cos ⁡ ( i x ) = cos ⁡ ( − i x ) = e x...

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Wikipedia:Reference desk/Archives/Mathematics/2013 November 12
Rabu, 2022-02-23 12:16:46

object on the flat plane) then we have 2 μ cos ⁡ θ = μ cos ⁡ θ + sin ⁡ θ {\displaystyle 2\mu \cos \theta =\mu \cos \theta +\sin \theta } ⇒ μ = tan ⁡ θ {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2011 May 31
Sabtu, 2022-02-26 10:28:29

formula sin ⁡ ( a + b ) = sin ⁡ ( a ) cos ⁡ ( b ) + cos ⁡ ( a ) sin ⁡ ( b ) {\displaystyle \sin(a+b)=\sin(a)\cos(b)+\cos(a)\sin(b)} . Looie496 (talk) 00:36...

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Wikipedia:Reference desk/Archives/Mathematics/2007 July 24
Rabu, 2022-02-23 11:44:10

Pythagorean theorem. ( cos ⁡ θ ) 2 + ( sin ⁡ θ ) 2 = 1 ( cos ⁡ θ ) 2 + ( 24 25 ) 2 = 1 ( cos ⁡ θ ) 2 = 1 − 576 625 = 49 625 cos ⁡ θ = ± 7 25 {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2007 July 6
Sabtu, 2022-02-26 10:25:30

What is the name of this formula by Leonhard Euler: eit = cos t + i sin t ? Ugly bag of mostly water 03:59, 6 July 2007 (UTC) I think it's one of many...

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Wikipedia:Articles for deletion/List of commanding officers of USS Nevada (BB-36)
Selasa, 2025-12-09 11:29:19

was to not have such lists and instead add notable COs to the article prose. The few notable COs on this page have already been added to the main article...

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Wikipedia:Reference desk/Archives/Mathematics/2008 October 14
Jumat, 2022-02-25 21:33:47

N − 1 X k ( cos ⁡ 2 π k n N + i sin ⁡ 2 π k n N ) n = 0 , … , N − 1. {\displaystyle x_{n}={\frac {1}{N}}\sum _{k=0}^{N-1}X_{k}\left(\cos {\frac {2\pi...

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Wikipedia:Reference desk/Archives/Mathematics/2017 September 28
Kamis, 2017-10-05 09:16:36

2ysin2(x) + sin(x) - 2y2cos2(x) + 3y2 = c and ⁠sin(x)/cos(2x) - 3⁠ = (⁠c(-3 + cos(2x) + sin2(x)/cos(2x) - 3⁠)0.5 and both were incorrect. I have attempted...

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Wikipedia:Reference desk/Archives/Mathematics/2010 December 17
Kamis, 2023-03-09 22:41:36

it's 2 cos ⁡ ( π 6 ) ( 5 ) + 6 = 4.3 {\displaystyle 2\cos({\frac {\pi }{6}})(5)+6=4.3} and not 2 cos ⁡ ( 5 π 6 ) + 6 = 4.3 {\displaystyle 2\cos({\frac...

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Wikipedia:Reference desk/Archives/Mathematics/2012 September 26
Kamis, 2022-02-24 15:10:17

problem be solved: lim x → 2 2 x 2 + cos ⁡ x 3 x 2 + x − 1 + e − x {\displaystyle \lim _{x\rightarrow 2}{\frac {2x^{2}+\cos x}{3x^{2}+x-1+e^{-x}}}} Neither...

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Wikipedia:Reference desk/Archives/Mathematics/2008 March 31
Senin, 2023-02-27 18:08:44

by iteratively applying 2 cos ⁡ ( x 2 ) = 2 + 2 cos ⁡ x . {\displaystyle 2\cos \left({\frac {x}{2}}\right)={\sqrt {2+2\cos x}}\,.} Gandalf61 (talk) 11:11...

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Wikipedia:Reference desk/Archives/Mathematics/2008 July 1
Kamis, 2022-02-24 14:55:57

) cos ⁡ x = lim x → 90 cos ⁡ x cos ⁡ x = lim x → 90 1 = 1 , {\displaystyle \lim _{x\to 90}{\dfrac {\sin(90-x)}{\cos x}}=\lim _{x\to 90}{\dfrac {\cos x}{\cos...

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Wikipedia:Reference desk/Archives/Mathematics/2014 January 4
Sabtu, 2022-02-26 10:34:08

BOF=COE, AOF=COD, BOD=AOE. Then d = c cos β = b cos γ, so c/cos γ = b/cos β and similarly these are equal to a/cos α. Let r be the common value. From α...

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Wikipedia:Reference desk/Archives/Mathematics/2009 May 14
Sabtu, 2023-02-11 00:32:40

|      \ |        \ W       R So cos(theta) = adjacent/hypotenuse So cos(40) = W/R So R = W / cos(40), not R = W cos(40) Where am I going wrong? --212...

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Wikipedia:Reference desk/Archives/Mathematics/2014 April 11
Rabu, 2022-02-23 12:17:35

or -ln (cos x). Can someone help? --24.228.94.244 (talk) 21:45, 11 April 2014 (UTC) They have the same value. ln(sec x) = ln(1/cosx) = -ln(cos x) (note...

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Wikipedia:Reference desk/Archives/Mathematics/2024 November 23
Minggu, 2024-12-08 08:04:39

\alpha ,} parametric equation ( x , y ) = ( λ cos ⁡ α , λ sin ⁡ α ) . {\displaystyle (x,y)=(\lambda \cos \alpha ,\lambda \sin \alpha ).} The line crosses...

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Wikipedia:Reference desk/Archives/Mathematics/2016 July 19
Selasa, 2016-07-26 09:39:39

cos(M0+cfm0) * (seg02 + cos(M1)*seg1 + cos(M2+cfm2-90)*seg21 + cos(M2+cfm2)*seg22) y = sin(M0) * (seg02 + cos(M1)*seg1 + cos(M2+cfm2-90)*seg21 + cos(M2+cfm2)*seg22)...

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Wikipedia:Reference desk/Archives/Mathematics/2016 February 8
Sabtu, 2022-01-15 11:17:29

a, ∫ 0 π 2 cos ⁡ ( a cos ⁡ x ) d x = ∫ 0 ∞ sin ⁡ ( a cosh ⁡ x ) d x = π 2 J 0 ( a ) . {\displaystyle \int _{0}^{\frac {\pi }{2}}\cos(a\cos x)dx=\int _{0}^{\infty...

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Wikipedia:Reference desk/Archives/Mathematics/2019 February 22
Sabtu, 2019-03-02 11:01:47

the top polygon (with n sides) has vertices ( cos ⁡ 2 k π / n , sin ⁡ 2 k π / n , c ) {\displaystyle (\cos 2k\pi /n,\sin 2k\pi /n,c)} for vertices k = 0...

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Wikipedia:Reference desk/Archives/Mathematics/2008 September 27
Kamis, 2022-02-24 14:57:54

is the differential of − cos ⁡ x , {\displaystyle -\cos x,\,} You can start with u = 1 + cos ⁡ x , {\displaystyle u=1+\cos x,\,} so that − d u = sin...

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Wikipedia:WikiProject Spam/LinkReports/hill16.ie
Kamis, 2011-05-12 21:43:48

whitelisted: User is in trusted groups bot, rollbacker, reviewer on some wikis Cos Eile (talk · contribs · deleted contribs · blacklist hits · Edit filter search ·...

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Wikipedia:Reference desk/Archives/Mathematics/2007 June 20
Minggu, 2023-08-06 11:32:23

cos ⁡ a , cos ⁡ b − cos ⁡ a cos ⁡ g sin ⁡ g , sin 2 ⁡ a − ( cos ⁡ b − cos ⁡ a cos ⁡ g sin ⁡ g ) 2 ⟩ . {\displaystyle \left\langle \cos a,{\frac {\cos...

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Wikipedia:Reference desk/Archives/Mathematics/2007 June 23
Rabu, 2022-02-23 11:44:39

3 cos ⁡ φ ) {\displaystyle \mathbf {z} (\varphi )=(d/2)\mathbf {e} _{1}+{\sqrt {r^{2}-(d/2)^{2}}}(\mathbf {e_{2}} \sin \varphi +\mathbf {e_{3}} \cos \varphi...

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Wikipedia:Reference desk/Archives/Mathematics/2016 November 11
Jumat, 2016-11-18 10:36:49

8th grade but have been too lazy to finish adding cos(29.75°)*360*0.5, cos(29.25°)*360*0.5, ... cos(0. 25°)*360*0.5 to see if that's convincingly close...

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Wikipedia:Reference desk/Archives/Mathematics/2013 January 26
Jumat, 2023-03-03 13:24:10

x ) = cos ⁡ ( x 2 ) + 1 − x {\displaystyle f(x)=\cos(x^{2})+1-x} I reasoned that since the Maclaurin series for cos ⁡ ( x ) {\displaystyle \cos(x)} is...

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Wikipedia:Reference desk/Archives/Mathematics/2016 January 10
Senin, 2023-03-20 14:02:13

{b}}|\cos(\theta )\quad {\color {black}/}:-2} | a → | | b → | cos ⁡ ( θ ) = a 1 b 1 + a 2 b 2 {\displaystyle \color {red}|{\vec {a}}||{\vec {b}}|\cos(\theta...

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Wikipedia:Reference desk/Archives/Mathematics/2006 December 1
Sabtu, 2023-03-25 12:38:51

′ ( θ ) cos ⁡ ( θ ) 2 + sin ⁡ ( θ ) 2 cos ⁡ ( o ε ) 4 ; {\displaystyle r'(\theta )=n'(\theta ){\sqrt {\cos(\theta )^{2}+\sin(\theta )^{2}\cos(o\!\varepsilon...

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Wikipedia:Reference desk/Archives/Mathematics/2013 January 15
Minggu, 2023-03-05 17:34:50

− cos ⁡ x sin n + 1 ⁡ x ] x = 0 x = π = ( n + 1 ) ∫ 0 π cos 2 ⁡ x sin n ⁡ x   d x = {\displaystyle \int _{0}^{\pi }\cos x(\sin ^{n+1}x)'\ dx+[-\cos x\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2006 November 30
Selasa, 2022-02-22 15:28:49

undoubtedly homework, we have ∫ cos ⁡ x d x = ∫ 2 u cos ⁡ u d u ; x = u 2 , d x = 2 u d u = ⋯ (integration by parts) = 2 x sin ⁡ x + 2 cos ⁡ x ; u = x {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2008 December 5
Senin, 2023-02-27 18:08:52

specific equation is: lim a → 0 .5 − ( .5 cos ⁡ a ) × 360 a = π {\displaystyle \lim _{a\to 0}{\sqrt {.5-(.5\cos a)}}\times {\frac {360}{a}}=\pi } By the...

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Wikipedia:Reference desk/Archives/Mathematics/2022 March 21
Rabu, 2022-03-30 08:37:08

restricted to the subspace) given by f ( a ) = ( cos ⁡ ( a ) , sin ⁡ ( a ) ) {\displaystyle f(a)=(\cos(a),\sin(a))} , but I have yet to construct a counterexample...

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Wikipedia:WikiProject Statistics/Manual of Style
Selasa, 2013-03-19 01:55:09

relative to the main text. For example: e i θ = cos ⁡ θ + i sin ⁡ θ   . {\displaystyle e^{i\theta }=\cos \theta +i\sin \theta \ .} This format may be used...

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Wikipedia:Reference desk/Archives/Mathematics/2009 March 17
Sabtu, 2023-02-11 00:32:09

( x ) cos ⁡ ( y )   {\displaystyle \scriptstyle z=\sin(x)\cos(y)\ } or z = sin ⁡ ( y ) cos ⁡ ( x )   {\displaystyle \scriptstyle z=\sin(y)\cos(x)\ } ...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 14
Kamis, 2022-02-24 15:03:40

with semiaxes a, b is ∫ 0 2 π a 2 cos 2 ⁡ t + b 2 sin 2 ⁡ t   d t {\displaystyle \int _{0}^{2\pi }{\sqrt {a^{2}\cos ^{2}t+b^{2}\sin ^{2}t}}\ dt} . This...

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Wikipedia:Reference desk/Archives/Mathematics/2009 December 28
Jumat, 2023-03-03 13:26:26

⁡ y = ( sin ⁡ x cos ⁡ x ) ± ( sin ⁡ y cos ⁡ y ) = sin ⁡ x cos ⁡ y ± sin ⁡ y cos ⁡ x cos ⁡ x ⋅ cos ⁡ y = sin ⁡ ( x ± y ) cos ⁡ x ⋅ cos ⁡ y . {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2008 December 15
Sabtu, 2023-02-11 00:26:33

cos 3 ⁡ x − cos ⁡ x ) = − sin ⁡ x cos 2 ⁡ x + sin ⁡ x = ( 1 − cos 2 ⁡ x ) sin ⁡ x = sin 3 ⁡ x {\displaystyle {\frac {d}{dx}}\left({\tfrac {1}{3}}\cos...

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Wikipedia:Wikipedia Signpost/2022-06-26/Humour
Minggu, 2024-03-03 20:43:10

order, a camp doesn't have light for itself, nor is the basketball team in Cos Angeles! Will fix that even if there's only one C otherwise in the puzzle...

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Wikipedia:Reference desk/Archives/Mathematics/2013 April 10
Kamis, 2022-02-24 15:10:25

will be at (r cos(15°),r sin(15°)). Now cos ⁡ π 12 = cos ⁡ 15 ∘ = 1 4 2 ( 3 + 1 ) ≈ 0.9659258263 {\displaystyle \cos {\frac {\pi }{12}}=\cos 15^{\circ }={\tfrac...

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Wikipedia:Reference desk/Archives/Mathematics/2006 November 21
Sabtu, 2023-02-11 00:20:43

= 1 cos ⁡ y = ( cos ⁡ y ) − 1 {\displaystyle {\begin{aligned}x&{}=\sec y\\&{}={\frac {1}{\cos y}}\\&{}=(\cos y)^{-1}\end{aligned}}} Since d cos z is...

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Wikipedia:Reference desk/Archives/Mathematics/2010 November 29
Kamis, 2023-03-09 22:42:02

x = cos ⁡ θ ∂ ∂ r − 1 r sin ⁡ θ ∂ ∂ θ    and    ∂ ∂ y = sin ⁡ θ ∂ ∂ r + 1 r cos ⁡ θ ∂ ∂ θ . {\displaystyle {\frac {\partial }{\partial x}}=\cos \theta...

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Wikipedia:Reference desk/Archives/Mathematics/2019 August 25
Sabtu, 2020-02-01 07:40:51

If I wanted to integrate something like cos(ax+by+cz) or exp(ax+by+cz) over the unit ball, I could simply apply a coordinate rotation to make the vector...

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Wikipedia:Reference desk/Archives/Mathematics/2006 December 4
Jumat, 2022-02-25 21:27:03

The general form is [ x y ] → [ cos ⁡ θ − sin ⁡ θ sin ⁡ θ cos ⁡ θ ] [ x y ] = [ x cos ⁡ θ − y sin ⁡ θ x sin ⁡ θ + y cos ⁡ θ ] {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2022 July 3
Senin, 2022-07-11 07:04:33

Is the graph for cos(xy) = csc(yx) same as made by Desmos or is it largely different? ExclusiveEditor Notify Me! 13:15, 3 July 2022 (UTC) Is there a way...

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Wikipedia:Reference desk/Archives/Mathematics/2016 June 1
Rabu, 2016-06-08 08:44:31

pac-men together like this, the distance between centers is 2 cos ⁡ ( α ) {\displaystyle 2\cos(\alpha )} . So two full circles occupy a 2 by 4 rectangle and...

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Wikipedia:Reference desk/Archives/Mathematics/2011 October 22
Kamis, 2022-02-24 15:07:13

}{2}}f(x)g(x)dx} . Find the function in s p a n { 1 , cos ⁡ x , sin ⁡ x } {\displaystyle span\{1,\cos x,\sin x\}} which is nearest to the function { 0 ,...

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Wikipedia:Reference desk/Archives/Mathematics/2016 October 1
Sabtu, 2016-10-08 07:15:49

"onedeg" as onedeg = 1 * (Cos[1 deg] + i Sin[1 deg]) = 0.999847695156391 + 0.0174524064372835 i Next calculate Sine[23.45 deg] and Cos[23.45 deg] onedeg^23...

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Wikipedia:Reference desk/Archives/Computing/2022 January 22
Senin, 2022-05-09 22:46:38

math.sin(c) cos_c = math.cos(c) lat1_rad = math.radians(lat1) sin_lat1 = math.sin(lat1_rad) cos_lat1 = math.cos(lat1_rad) to_asin = cos_c * sin_lat1...

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Wikipedia:Reference desk/Archives/Mathematics/2008 October 24
Kamis, 2022-02-24 14:57:36

( cos ⁡ ( v ln ⁡ 3 ) + i sin ⁡ ( v ln ⁡ 3 ) = 3 u ( cos ⁡ ( v ln ⁡ 3 ) + i sin ⁡ ( v ln ⁡ 3 ) . {\displaystyle 3^{x}=e^{(u+iv)\ln 3}=e^{u\ln 3}(\cos(v\ln...

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Wikipedia:Featured list candidates/List of cities in British Columbia/archive1
Sabtu, 2024-10-19 07:25:35

list candidates/List of cities in British Columbia/archive1 Nominator(s): Cos (X + Z) 20:46, 11 September 2024 (UTC) I did some work on this list in honor...

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Wikipedia:Reference desk/Archives/Mathematics/2016 January 17
Senin, 2016-01-25 08:20:05

evaluate "sum of (-1)^i * cos(pi*i*k/n + pi*i) from i=0 to n-1". Wolfram Alpha tells me this sum is: sum_(i=0)^(-1+n) (-1)^i cos((pi i k)/n+pi i) = 1/2 (sin(1/2...

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Wikipedia:Reference desk/Archives/Mathematics/2010 November 3
Rabu, 2022-02-23 12:03:29

product) getting sent to (0, 0, 1). The vectors ( cos ⁡ ( θ ) , sin ⁡ ( θ ) , 0 ) {\displaystyle (\cos(\theta ),\sin(\theta ),0)} for 0 ≤ θ ≤ π / 2 {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2006 September 29
Sabtu, 2023-02-11 00:22:50

September 2006 (UTC) I don't think so. One special case would be cos ⁡ x = x {\displaystyle \cos x=x} (almost, anyway), and there is no clean way to solve that...

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Wikipedia:Reference desk/Archives/Mathematics/2015 July 18
Jumat, 2022-05-20 02:07:50

Trigonometric functions, Wikipedia's article on the subject, lists sin, cos and tan in the first section, and then the reciprocals in the second section;...

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Wikipedia:Reference desk/Archives/Mathematics/2016 May 17
Minggu, 2021-10-10 19:41:15

that cos ⁡ ( 2 θ ) = cos 2 ⁡ ( θ ) − sin 2 ⁡ ( θ ) {\displaystyle \cos(2\theta )=\cos ^{2}(\theta )-\sin ^{2}(\theta )} and that consequently, cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2010 August 1
Kamis, 2023-03-09 22:45:47

looking for. [ cos ⁡ θ sin ⁡ θ 0 sin ⁡ θ − cos ⁡ θ 0 0 0 1 ] {\displaystyle {\begin{bmatrix}\cos \theta &\sin \theta &0\\\sin \theta &-\cos \theta &0\\0&0&1\end{bmatrix}}}...

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Wikipedia:Reference desk/Archives/Mathematics/2012 June 24
Rabu, 2022-02-23 12:12:43

priori? If not, you need more parameters: f ( x ) = A cos ⁡ ( k x + δ ) {\displaystyle f(x)=A\cos(kx+\delta )} . I don't know if there is a nice formula...

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Wikipedia:Reference desk/Archives/Mathematics/May 2006
Jumat, 2022-10-07 05:22:54

from cos ⁡ ( x + y ) = cos ⁡ x cos ⁡ y − sin ⁡ x sin ⁡ y , {\displaystyle \cos(x+y)=\cos x\cos y-\sin x\sin y,} from which you get cos ⁡ 2 x = cos 2 ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2017 November 1
Senin, 2022-05-09 22:49:09

solution should give: For x=16 and y=4, cos(2u/5) = 1/2 ; For x=16√3 and y=4, cos(2u/5) = 1/4⁡ ; For x=80√5 and y=4, cos(2u/5) = 1/6⁡ ; Thank youAcspor (talk)...

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Wikipedia:Reference desk/Archives/Mathematics/2007 October 14
Kamis, 2022-02-24 14:53:59

skipping any root can be tricky, but if you can plot a graph of x cos ⁡ x − c {\displaystyle x\cos x-c} it can help. Also, due to the periodicity of the cosine...

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Wikipedia:Reference desk/Archives/Mathematics/2009 April 29
Jumat, 2022-02-25 21:34:43

(UTC) I'm trying to find the antiderivative of sqrt(C2+x2)dx So I tried x=iC cos(iy) giving dx/dy=Csin(iy) and y=-ln(C)+ln(-x+sqrt(C2+x2) ) Substituting y...

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Wikipedia:Reference desk/Archives/Mathematics/May 2010
Selasa, 2022-02-22 15:15:09

Wikipedia:Reference_desk/Archives/Mathematics/2010 May 3 show that cos(2pi/7)+cos(4pi/7)+cos(6pi/7)=-1/2 Formal proof that (2^x-1)/(3x!+x^2-1) converges to...

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Wikipedia:Reference desk/Archives/Mathematics/2008 January 17
Rabu, 2022-02-23 11:49:41

- cos theta)/(2 sin^2 theta). Direct substitution yields an indeterminate form, so I did the following: = 1/2 lim as theta approaches 0 of (1 - cos theta)/(1...

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Wikipedia:Reference desk/Archives/Mathematics/2008 May 27
Jumat, 2022-02-25 21:33:23

tan ⁡ β = y ′ x ′ = cos ⁡ θ y x = cos ⁡ θ tan ⁡ α {\displaystyle \tan {\beta }={\frac {y'}{x'}}=\cos {\theta }{\frac {y}{x}}=\cos {\theta }\tan {\alpha...

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Wikipedia:Reference desk/Archives/Mathematics/2007 October 18
Kamis, 2022-02-24 14:54:01

trick or made a mistake. I used sin(a+ib)=sin(a)cos(ib)+cos(a)sin(ib)=c+id so c=sin(a)cos(ib), d=cos(a)sin(ib) .. solving this gave me a quartic.. Does...

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Wikipedia:Reference desk/Archives/Mathematics/2013 June 5
Selasa, 2022-02-22 15:18:22

exam question which is whether ∑ n = 1 ∞ cos ⁡ ( n x ) n ! {\displaystyle \sum _{n=1}^{\infty }{\frac {\cos(nx)}{\sqrt {n!}}}} converges? — Preceding...

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Wikipedia:Reference desk/Archives/Computing/2009 April 28
Senin, 2023-01-30 17:06:38

(2.5-1.5*cos(v))*cos(u): \ v<2*pi ? (2.5-1.5*cos(v))*cos(u):\ v<3*pi ? -2+(2+cos(u))*cos(v): -2+2*cos(v)-cos(u) y(u,v)= v<pi ? (2.5-1.5*cos(v))*sin(u):...

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Wikipedia:Reference desk/Archives/Mathematics/2019 January 28
Rabu, 2019-02-06 09:24:14

b cos ⁡ ( a − b ) + cos ⁡ b sin ⁡ ( a − b ) < sin ⁡ b + sin ⁡ b b ( a − b ) = a b sin ⁡ b . {\displaystyle \sin a=\sin(b+(a-b))=\sin b\cos(a-b)+\cos b\sin(a-b)<\sin...

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Wikipedia:Featured list candidates/List of Vancouver Canadians seasons/archive1
Rabu, 2025-06-18 07:26:33

Nominator(s): Cos (X + Z) 21:39, 20 May 2025 (UTC) I'm back with another FLC and this time it's a sports team season list. I hope you enjoy. Cos (X + Z) 21:39...

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Wikipedia:Reference desk/Archives/Mathematics/2013 May 18
Kamis, 2022-02-24 15:11:35

It uses the angle doubling formula 2 cos ⁡ ( 2 α ) = ( 2 cos ⁡ α ) 2 − 2 {\displaystyle 2\cos(2\alpha )=(2\cos \alpha )^{2}-2} to show that for α with...

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Wikipedia:Reference desk/Archives/Mathematics/2016 October 16
Senin, 2017-06-12 03:30:19

third parameter, for example { ( sin ⁡ θ , cos ⁡ θ ) : θ ∈ [ 0 , 2 π ) } {\displaystyle \{(\sin \theta ,\cos \theta ):\theta \in [0,2\pi )\}} . Gandalf61...

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Wikipedia:Reference desk/Archives/Mathematics/2011 September 23
Kamis, 2023-03-09 22:47:51

third line segment you can draw to represent cos ⁡ θ − cos ⁡ ( θ + δ ) {\displaystyle \cos \theta -\cos(\theta +\delta )} , make a right triangle. (I'm...

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Wikipedia:Reference desk/Archives/Mathematics/2006 September 14
Sabtu, 2023-02-11 00:22:02

cos ⁡ ( θ ) , R sin ⁡ ( θ ) , a + b cos ⁡ ( θ ) }   {\displaystyle \{R,\theta ,a+b\cos(\theta )\}\rightarrow \{R\cos(\theta ),R\sin(\theta ),a+b\cos(\theta...

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Wikipedia:Reference desk/Archives/Mathematics/October 2011
Selasa, 2022-02-22 15:14:28

Wikipedia:Reference_desk/Archives/Mathematics/2011 October 1 Solving cos(ax) = cos(bx) generally moving an article from my priviate place to the public...

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Wikipedia:Reference desk/Archives/Mathematics/2007 August 28
Sabtu, 2022-02-26 10:24:41

cos ⁡ ( u ) d u {\displaystyle \int {e^{u}\cos {(u)}du}} Which integrates to e u cos ⁡ ( u ) + e u sin ⁡ ( u ) 2 + C {\displaystyle {\frac {e^{u}\cos...

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Wikipedia:Reference desk/Archives/Mathematics/2020 October 10
Minggu, 2020-10-18 07:56:21

x ) = ∫ 0 ∞ d t t [ cos ⁡ ( t ) − cos ⁡ ( x t ) ] {\displaystyle \ln(x)=\int _{0}^{\infty }\,{\frac {dt}{t}}\,\left[\cos(t)-\cos(xt)\right]} The first...

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Wikipedia:Articles for deletion/Judy Coser
Minggu, 2025-12-14 02:45:30

to deletion (glossary) Help, my article got nominated for deletion! Judy Coser (edit | talk | history | protect | delete | links | watch | logs | views)...

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Wikipedia:Reference desk/Archives/Mathematics/2022 January 12
Kamis, 2023-03-16 21:25:49

replace a {\displaystyle a} in (2) by the RHS of (4): given that cos ⁡ φ ≠ 0 {\displaystyle \cos \varphi \neq 0} - Justin545 (talk) 20:13, 12 January 2022 (UTC)...

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Wikipedia:Reference desk/Archives/Mathematics/2021 May 20
Senin, 2022-07-04 23:16:00

) = cos ⁡ ( 2 π / n ) / cos ⁡ ( π / n ) = 2 cos ⁡ ( π / n ) − 1 / cos ⁡ ( π / n ) {\displaystyle a/b=\sin(\pi /2-2\pi /n)/\sin(\pi /2+\pi /n)=\cos(2\pi...

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Wikipedia:Peer review/Lubricating tram 5572/archive1
Senin, 2026-01-26 08:03:13

article to FA status. I already improved this article to GA status. Thanks, Cos (X + Z) 17:54, 15 November 2025 (UTC) What I'm trying to understand is why...

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Wikipedia:Reference desk/Archives/Mathematics/2012 October 15
Kamis, 2022-02-24 15:09:51

f^{-1}(x)dx=xf^{-1}(x)-g(f(x))+C} ; example: ∫ arcsin ⁡ x d x = x arcsin ⁡ x + cos ⁡ ( arcsin ⁡ x ) + C = x arcsin ⁡ x + 1 − sin 2 ⁡ ( arcsin ⁡ x ) + C = x...

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Wikipedia:Reference desk/Archives/Mathematics/2010 March 7
Selasa, 2022-02-22 15:22:11

after "and". cos 2 ⁡ x sin ⁡ x + sin ⁡ x = cos ⁡ x ( cos ⁡ x sin ⁡ x ) + sin ⁡ x = cos ⁡ x cot ⁡ x + sin ⁡ x . {\displaystyle {\frac {\cos ^{2}x}{\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2010 December 11
Kamis, 2023-03-09 22:46:43

v = –cos x. The first application gives I = − e 9 − 2 x cos ⁡ x − 2 ∫ e 9 − 2 x cos ⁡ x d x . {\displaystyle I=-e^{9-2x}\cos x-2\int e^{9-2x}\cos x\,{\text{d}}x...

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Wikipedia:Reference desk/Archives/Mathematics/2022 May 15
Senin, 2022-05-23 07:06:26

}{k_{2}}})}}={\frac {sin({\frac {\pi }{k_{1}}})cos({\frac {\pi }{k_{2}}})}{sin({\frac {\pi }{k_{2}}})cos({\frac {\pi }{k_{1}}})}}={\frac {(e^{\frac {i\pi...

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Wikipedia:Reference desk/Archives/Mathematics/2012 June 6
Sabtu, 2022-02-26 10:30:01

6 June 2012 (UTC) So you'll want something like x = 2 θ cos ⁡ θ {\displaystyle x=2\theta \cos \theta } y = θ sin ⁡ θ {\displaystyle y=\theta \sin \theta...

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Wikipedia:Reference desk/Archives/Mathematics/2007 March 4
Rabu, 2022-02-23 11:45:07

use the identity that cos ⁡ ( a − b ) = cos ⁡ ( a ) cos ⁡ ( b ) + sin ⁡ ( a ) sin ⁡ ( b ) {\displaystyle \cos(a-b)=\cos(a)\cos(b)+\sin(a)\sin(b)} ? If...

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Wikipedia:Reference desk/Archives/Mathematics/2010 June 10
Sabtu, 2023-02-11 00:37:20

= d ( − cos ⁡ ( x ) ) + d x + d C = d ( − cos ⁡ ( x ) + x + C ) {\displaystyle f(x)dx=(\sin(x)+1)dx=\sin(x)dx+dx+dC=d(-\cos(x))+dx+dC=d(-\cos(x)+x+C)}...

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Wikipedia:Good article reassessment/1997 Michigan Wolverines football team/1
Sabtu, 2025-11-22 11:53:27

section as it feels like WP:FANCRUFT. Cos (X + Z) 21:16, 21 November 2025 (UTC) I added some citation needed tags. @CosXZ: Would you be able to address these...

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Wikipedia:Reference desk/Archives/Mathematics/2012 August 4
Kamis, 2023-03-09 22:44:17

5 ∫ 0 2 π ∫ 0 2 ( 3 ( r cos ⁡ θ ) 2 + 3 ( r sin ⁡ θ ) 2 ) r d r d θ {\displaystyle =5\int _{0}^{2\pi }\int _{0}^{2}(3(r\cos \theta )^{2}+3(r\sin \theta...

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Wikipedia:Reference desk/Archives/Mathematics/2015 November 28
Sabtu, 2015-12-05 10:22:32

value of (d(n))2 = sin2 n. But sin2 n = 1/2 - 1/2 cos 2n. Arguing as before, the average value of cos 2n is 0 so the average we want is 1/2. --RDBury (talk)...

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Wikipedia:Reference desk/Archives/Mathematics/2011 February 19
Rabu, 2022-02-23 12:06:21

(UTC) An example: ∫ cos ⁡ x + sin 2 ⁡ x 3 sin ⁡ x − cos ⁡ x sin ⁡ x d x . {\displaystyle \int {\frac {\cos x+\sin ^{2}x}{3\sin x-\cos x\sin x}}\,dx.} Applying...

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Wikipedia:Reference desk/Archives/Mathematics/2011 March 22
Selasa, 2025-08-26 03:43:43

‖ A ‖ ‖ B ‖ cos ⁡ Θ ‖ A ‖ 2 + ‖ B ‖ 2 − ‖ A ‖ ‖ B ‖ cos ⁡ Θ {\displaystyle {\frac {\left\Vert A\right\Vert \left\Vert B\right\Vert \cos \Theta }{\left\Vert...

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Wikipedia:Reference desk/Archives/Mathematics/2016 March 22
Selasa, 2016-03-29 07:23:39

13:46, 22 March 2016 (UTC). cos(C) = −cos(A)cos(B) + sin(A)sin(B)cos(c) cos(C) = −cos(45°)cos(45°) + sin(45°)sin(45°)cos(90°) = 0 C = 90° sin(A)/sin(a)...

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Wikipedia:Reference desk/Archives/Mathematics/2009 September 2
Sabtu, 2023-02-11 00:34:15

read cos[πn2]. Rkr1991 (Wanna chat?) 13:33, 2 September 2009 (UTC) Let's see ... cos(0) = 1 ... cos(π) = −1 ... cos(4π) = 1 ... cos(9π) = −1 ... cos(16π)...

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Wikipedia:Reference desk/Archives/Science/2016 November 27
Minggu, 2021-12-26 18:13:51

_{2}}} If e.g. cos ⁡ θ 1 − cos ⁡ θ 2 = cos ⁡ θ 5 − cos ⁡ θ 6 {\displaystyle \cos {\theta _{1}}-\cos {\theta _{2}}=\cos {\theta _{5}}-\cos {\theta _{6}}}...

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Wikipedia:Reference desk/Archives/Mathematics/2010 February 16
Senin, 2023-01-30 16:23:43

a cos ⁡ B + b cos ⁡ A = d ( sin ⁡ A cos ⁡ B + sin ⁡ B cos ⁡ A ) = d sin ⁡ ( A + B ) , {\displaystyle a\cos B+b\cos A=d\left(\sin A\cos B+\sin B\cos A\right)=d\sin(A+B)...

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Wikipedia:Reference desk/Archives/Mathematics/2023 November 23
Jumat, 2023-12-01 07:52:09

0 sin ⁡ ( λ − λ 0 ) ( sin ⁡ φ cos ⁡ ( λ − λ 0 ) − tan ⁡ φ 0 cos ⁡ φ ) r = x 2 + y 2 θ = arctan2 ( y , x ) x ′ = r k cos ⁡ θ y ′ = r k sin ⁡ θ {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2016 June 9
Jumat, 2016-06-17 11:21:50

derivative f ′ ( x ) = { − cos ⁡ ( 1 x ) + 2 x sin ⁡ ( 1 x ) if  x ≠ 0 , 0 if  x = 0. {\displaystyle f'(x)={\begin{cases}-{\mathord {\cos({\tfrac {1}{x}})}}+2x\sin({\tfrac...

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Wikipedia:Reference desk/Archives/Mathematics/2011 May 15
Selasa, 2022-02-22 15:20:56

= ( cos ⁡ θ , sin ⁡ θ ) {\displaystyle (x,y)=(\cos \theta ,\sin \theta )} . Substituting and differentiating gives ( c − a ) sin ⁡ ( 2 θ ) + b cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2017 July 2
Senin, 2017-07-10 07:58:46

every positive integer value of n, there is an identity equating cos(nx) to an nth degree polynomial in cos(x). Loraof (talk) 21:55, 2 July 2017 (UTC)...

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Wikipedia:WikiProject Video games/Peer review/Advance Wars: Dual Strike
Sabtu, 2008-02-16 03:06:42

"New Commanding Officers" section, as List of Advance Wars COs does a good job of covering COs (although the new ones at least deserve a mention in this...

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Wikipedia:Reference desk/Archives/Mathematics/2023 February 2
Jumat, 2023-02-10 11:42:48

of the cylinder/ring is d h cos ⁡ θ {\displaystyle {\frac {dh}{\cos \theta }}} . Therefore S = ∫ − R R 2 π R 2 − h 2 d h cos ⁡ θ = 2 π ∫ − π 2 π 2 R 2 −...

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Wikipedia:Reference desk/Archives/Mathematics/2011 December 9
Kamis, 2022-02-24 15:05:17

is that cos ⁡ ( ( 1 − 2 / n ) π ) {\displaystyle \cos((1-2/n)\pi )} is a rational number. In particular, a pentagon is impossible because cos ⁡ 108 ∘...

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Wikipedia:Featured list candidates/List of towns in British Columbia/archive1
Sabtu, 2024-11-23 07:25:38

Nominator(s): Cos (X + Z) 19:15, 22 October 2024 (UTC) Another BC municipalities list that I have done work on. I hope you enjoy. Cos (X + Z) 19:15,...

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Wikipedia:Reference desk/Archives/Mathematics/2011 July 31
Rabu, 2022-02-23 12:08:02

dzdydx = ρ2sinφdρdφdθ then we would have ∫ − 1 1 ∫ 0 1 − ρ 2 cos 2 ⁡ θ sin 2 ⁡ ϕ ∫ 0 1 − ρ 2 cos 2 ⁡ θ sin 2 ⁡ ϕ − 1 − ρ 2 sin 2 ⁡ θ sin 2 ⁡ ϕ ρ 2 sin ⁡ ϕ...

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Wikipedia:Wikipedia Signpost/2008-05-02/Technology report
Sabtu, 2024-01-06 07:53:18

13824) A range of new mathematical functions was added to {{#expr:}}: sin, cos, tan, asin, acos, atan, exp, ln, abs, floor, trunc, ceil, ^. The constants...

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Wikipedia:Reference desk/Archives/Science/2009 May 7
Sabtu, 2023-03-25 14:17:03

formula cos ⁡ θ o = cos ⁡ θ s − v c 1 − v c cos ⁡ θ s {\displaystyle \cos \theta _{o}={\frac {\cos \theta _{s}-{\frac {v}{c}}}{1-{\frac {v}{c}}\cos \theta...

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Wikipedia:Reference desk/Archives/Mathematics/2016 July 10
Minggu, 2016-07-17 07:05:15

∘ ) + cos ⁡ ( 3 n ∘ ) i 3 + sin ⁡ ( 3 n ∘ ) − cos ⁡ ( 3 n ∘ ) i 3 2 {\displaystyle \sin(n^{\circ })=-{\frac {{\sqrt[{3}]{\sin(3n^{\circ })+\cos(3n^{\circ...

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Wikipedia:Reference desk/Archives/Mathematics/2008 June 2
Rabu, 2022-02-23 11:50:29

statement is simply (cos(3θx)+isin(3θx))=(cos(θz)+isin(θz)). Using trig identities, 4cos^3(θx)-3cos(θx)+3isin(θx)-4isin^3(θx)=cos(θz)+isin(θz). Seperating...

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Wikipedia:Articles for deletion/Cossor Ali
Sabtu, 2025-11-29 03:08:50

‎ The result was DELETE. postdlf (talk) 01:24, 20 September 2012 (UTC) Cossor Ali (edit | talk | history | protect | delete | links | watch | logs | views)...

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Wikipedia:Reference desk/Archives/Mathematics/2011 September 24
Senin, 2023-02-27 18:02:37

fact that e i π + 2 π n = cos ⁡ ( π + 2 π n ) + i sin ⁡ ( π + 2 π n ) , where  n ∈ Z {\displaystyle e^{i\pi +2\pi n}=\cos(\pi +2\pi n)+i\sin(\pi +2\pi...

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Wikipedia:Reference desk/Archives/Mathematics/2011 February 13
Rabu, 2025-09-24 04:48:23

get sin ⁡ α = cos ⁡ α 0 sin ⁡ α 0 cos 2 ⁡ α 0 + tan 2 ⁡ ϕ {\displaystyle \sin \alpha ={\frac {\cos \alpha _{0}\sin \alpha _{0}}{\sqrt {\cos ^{2}\alpha _{0}+\tan...

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Wikipedia:Reference desk/Archives/Mathematics/2011 November 23
Kamis, 2023-03-09 22:42:45

1 N cos ⁡ ( n x ) ] {\displaystyle y_{pk}=\max \left[\sum _{n=1}^{N}\cos(nx)\right]} 2) Given an integer N, what is y p k = max [ ∑ n = 1 N cos ⁡ ( n...

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Wikipedia:Reference desk/Archives/Mathematics/2009 June 19
Sabtu, 2026-07-04 06:56:58

) − sin ⁡ ( 3 u ) = ( sin ⁡ u ) ( 1 + 2 cos ⁡ u − ( 4 cos 2 ⁡ u − 1 ) ) = ( 2 sin ⁡ u ) ( 1 + cos ⁡ u − 2 cos 2 ⁡ u ) {\displaystyle {\begin{aligned}&{}\quad...

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Wikipedia:Reference desk/Archives/Mathematics/2007 June 21
Kamis, 2022-02-24 14:52:40

cos ⁡ ( φ ) ⋅ cos ⁡ ( r ⋅ ln ⁡ ( 2 ) ⋅ sin ⁡ ( φ ) ) + 3 r ⋅ cos ⁡ ( φ ) ⋅ cos ⁡ ( r ⋅ ln ⁡ ( 3 ) ⋅ sin ⁡ ( φ ) ) = 13 {\displaystyle 2^{r\cdot \cos(\varphi...

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Wikipedia:Reference desk/Archives/Mathematics/2011 June 4
Rabu, 2022-02-23 12:08:24

rotation and then sketch the graph. r = 1 / (1 - 2 cos(t) + 2 sin(t)) I rewrote r into r = 1 / (1 - e cos(t + t')) where e is the eccentricity I solved for...

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Wikipedia:Reference desk/Archives/Mathematics/2011 August 26
Jumat, 2023-03-03 13:24:45

least 1/2, in fact 1/2 + 5/6 cos t + 4/6 cos 2t + 3/6 cos 3t + 2/6 cos 4t + 1/6 cos 5t = 1/6(cos 5/2t + cos 3/2t + cos 1/2)2 as can be shown using various...

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Wikipedia:Reference desk/Archives/Mathematics/2013 May 7
Selasa, 2022-02-22 15:18:03

that the position function is given by (cos t, sin t). So both the exponential function and the function cos t + isin t are solutions to similar initial-value...

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Wikipedia:Reference desk/Archives/Mathematics/2013 January 11
Selasa, 2022-02-22 15:19:05

the acceleration at a point is defined by a × cos ⁡ ( atan2 ⁡ ( y , x ) ) {\displaystyle a\times \cos(\operatorname {atan2} (y,x))} in the x-dimension...

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Wikipedia:Reference desk/Archives/Mathematics/2012 April 22
Sabtu, 2023-03-25 16:22:27

+ ( N cos ⁡ ( Q ) ) 2 {\displaystyle {\mbox{F}}(Q)={\sqrt {(D\sin(Q))^{2}+(N\cos(Q))^{2}}}\,\!} , then sin ⁡ ( V ) = D sin ⁡ ( Q ) F ( Q ) ; cos ⁡ ( V...

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Wikipedia:Reference desk/Archives/Mathematics/2007 December 23
Jumat, 2022-02-25 21:28:06

denominator as ( cos 2 ⁡ z − 1 ) cos 2 ⁡ z {\displaystyle (\cos ^{2}z-1)\cos ^{2}z} . If we take z = π, cos 2 ⁡ z − 1 = 0 {\displaystyle \cos ^{2}z-1=0} ,...

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Wikipedia:Reference desk/Archives/Mathematics/2019 October 2
Kamis, 2019-10-10 10:12:58

= ( cos ⁡ ( a + t ) , sin ⁡ ( a + t ) ) {\displaystyle u'(t)=T(t)=(\cos(a+t),\sin(a+t))} , so u ( t ) = ( x 0 , y 0 ) + ( sin ⁡ ( a + t ) , − cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2011 July 19
Kamis, 2023-03-09 22:41:13

sin ⁡ x − 3 cos ⁡ x sin ⁡ x − 2 cos ⁡ x . {\displaystyle {\frac {2\sec ^{2}x+\tan x-8}{\sec ^{2}x-5}}={\frac {2\sin x-3\cos x}{\sin x-2\cos x}}\,.} Have...

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Wikipedia:Articles for deletion/Jugger
Senin, 2023-03-20 01:22:47

06:53, 20 October 2005 (UTC) Merge the info here with List of Advance Wars COs, where Jugger is mentioned. Sjakkalle (Check!) 07:15, 20 October 2005 (UTC)...

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Wikipedia:Reference desk/Archives/Mathematics/2006 October 14
Jumat, 2019-06-28 09:43:00

(3, 5) means 3 sin(t) + 5 cos(t) or 3 cos(t) + 5 sin(t) if the base is {sin(t), cos(t)}, which is of course equal to {cos(t), sin(t)}? -- Meni Rosenfeld...

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Wikipedia:Reference desk/Archives/Mathematics/2012 July 27
Kamis, 2023-03-09 22:39:36

→ X = x cos ⁡ θ + y sin ⁡ θ ,   y → Y = y cos ⁡ θ − x sin ⁡ θ {\displaystyle x\rightarrow X=x\cos \theta +y\sin \theta ,\ y\rightarrow Y=y\cos \theta -x\sin...

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Wikipedia:Reference desk/Archives/Mathematics/2025 April 18
Sabtu, 2025-05-03 08:11:48

(UTC) Using L'Hopital's rule gives me 3 cos ⁡ ( 3 x ) − cos ⁡ ( x ) 3 x 2 {\displaystyle {\frac {3\cos(3x)-\cos(x)}{3x^{2}}}} which is 2 / 0 {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2008 October 15
Selasa, 2022-02-22 15:25:47

o s ( 2 x ( y − 2 ) ) e x 2 − ( y − 2 ) 2 − 3 x y 2 + x 3 {\displaystyle cos\left(2\,x\,\left(y-2\right)\right)\,{e}^{{x}^{2}-{\left(y-2\right)}^{2}}-3\...

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Wikipedia:Reference desk/Archives/Mathematics/2007 March 7
Selasa, 2022-08-30 21:57:11

formula, e i x = cos ⁡ x + i sin ⁡ x {\displaystyle e^{ix}=\cos x+i\sin x} . If we substitute x for π/2, that reduces to just i (since cos(π/2) = 0 and sin(π/2)=1)...

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Wikipedia:Reference desk/Archives/Mathematics/2008 February 17
Sabtu, 2023-03-25 16:12:37

β ) = arctan ⁡ ( sec ⁡ ( o ε ) tan ⁡ ( β ) ) , = ϕ ( σ ^ ) = arctan ⁡ ( cos ⁡ ( α ^ ) tan ⁡ ( σ ^ ) ) ; {\displaystyle {\begin{aligned}\phi &=\quad \phi...

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Wikipedia:Reference desk/Archives/Computing/2008 May 26
Jumat, 2023-02-10 20:15:28

arccos ⁡ ( ( cos ⁡ ( l a t 1 ) ⋅ cos ⁡ ( l o n g 1 ) ⋅ cos ⁡ ( l a t 2 ) ⋅ cos ⁡ ( l o n g 2 ) ) + ( cos ⁡ ( l a t 1 ) ⋅ sin ⁡ ( l o n g 1 ) ⋅ cos ⁡ ( l a...

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Wikipedia:Peer review/Fort St. John, British Columbia/archive1
Senin, 2024-07-01 18:25:20

reviewed for good article status (and maybe featured article status). Thanks, Cos (X + Z) 01:40, 20 May 2024 (UTC) Comments after a quick skim: There should...

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Wikipedia:Reference desk/Archives/Mathematics/2013 June 2
Sabtu, 2022-02-26 10:31:57

{\displaystyle 2r+2r\sin \theta =4} and 2 r cos ⁡ θ = 3 {\displaystyle 2r\cos \theta =3} . Getting expression for cos and sin and using the pythagorean identity...

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Wikipedia:Reference desk/Archives/Mathematics/2010 November 16
Selasa, 2025-08-26 03:40:50

you can substitute cos ⁡ ( β ) = 1 − θ / 2 π {\displaystyle \cos(\beta )=1-\theta /2\pi } to get 0 = cos ⁡ ( β ) sin ⁡ ( β ) + 1 2 cos 3 ⁡ ( β ) / sin ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2007 May 28
Selasa, 2022-05-31 00:35:32

example: The Cartesian vector (cos t, sin t) corresponds to polar (1, t). The respective derivatives are (−sin t, cos t), which depends on t, and (0,...

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Wikipedia:Reference desk/Archives/Mathematics/2008 August 15
Kamis, 2022-02-24 14:54:59

12:08, 16 August 2008 (UTC) How to find the derivative of x 3 cos ⁡ x {\displaystyle x^{3}\cos x} USING FIRST PRINCIPLE? —Preceding unsigned comment added...

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Wikipedia:Reference desk/Archives/Mathematics/2012 March 9
Minggu, 2022-06-05 19:27:17

) {\displaystyle \exp(-x)} then divide top and bottom by cos ⁡ ( m x ) {\displaystyle \cos(mx)} to get − 1 + m tan ⁡ ( m x ) ln ⁡ ( 2 ) {\displaystyle...

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Wikipedia:Today's featured article/October 24, 2013
Selasa, 2013-10-08 13:47:37

Copano. Texians were plotting to kidnap Mexican General Martín Perfecto de Cos, who was en route to Goliad, although they knew before their arrival that...

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Wikipedia:Reference desk/Archives/Mathematics/2009 April 13
Sabtu, 2023-02-11 00:28:49

was derived. cos ⁡ ( β sin ⁡ ( p ) ) = J 0 ( β ) + 2 J 2 ( β ) cos ⁡ ( 2 p ) + 2 J 4 ( β ) cos ⁡ ( 4 p ) + . . . . . {\displaystyle \cos(\beta \sin(p))=J_{0}(\beta...

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Wikipedia:Articles for deletion/Jalan Parit Hamid–Parit Botak
Sabtu, 2025-10-25 06:31:19

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:25, 3 October 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2008 January 11
Jumat, 2022-02-25 21:32:00

sin ⁡ θ d θ C 1 sin 2 ⁡ θ − 1 = ± ∫ d cos ⁡ θ C 1 ( 1 − cos 2 ⁡ θ ) − 1 = ± 1 C 1 ∫ d cos ⁡ θ ( 1 − 1 C 1 ) − cos 2 ⁡ θ . {\displaystyle t=\pm \int {\frac...

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Wikipedia:Reference desk/Archives/Mathematics/2013 May 25
Jumat, 2022-02-25 21:49:19

sin and cos assuming the angle is small in radians by sin ⁡ α ≈ 1 − α 2 2 {\displaystyle \sin \alpha \approx 1-{\frac {\alpha ^{2}}{2}}} cos ⁡ α ≈ α −...

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Wikipedia:Reference desk/Archives/Mathematics/2010 August 25
Sabtu, 2023-02-11 00:35:18

unit circle, using the natural parametrization ( x = cos ⁡ t , y = sin ⁡ t {\displaystyle x=\cos t,y=\sin t} ). By the first definition in Line integral...

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Wikipedia:Reference desk/Archives/Mathematics/2024 May 30
Jumat, 2024-06-14 08:10:21

( x ) = [ p ( x ) p ( − x ) ] m m ! I = ∫ − θ θ f ( x ) cos ⁡ ( x ) d x = 2 ∫ 0 θ f ( x ) cos ⁡ ( x ) d x = 2 ∑ k = 0 n m ( − 1 ) k f ( 2 k ) ( θ ) {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2008 September 14
Sabtu, 2023-02-11 00:28:39

cos ⁡ x {\displaystyle f(x)=x\sin x+\cos x} is an even function: f ( − x ) = f ( x ) {\displaystyle f(-x)=f(x)} . The Taylor series x sin ⁡ x + cos ⁡...

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Wikipedia:Articles for deletion/Jalan Sengkuang
Sabtu, 2025-10-25 06:09:00

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:22, 3 October 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2012 April 28
Kamis, 2023-03-09 22:43:24

+ b sin ⁡ ( x ) + c cos ⁡ ( x ) + d sin ⁡ ( 2 x ) + e cos ⁡ ( 2 x ) . . . {\displaystyle f(x)=a+b\sin(x)+c\cos(x)+d\sin(2x)+e\cos(2x)...} so in two dimensions...

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Wikipedia:Reference desk/Archives/Mathematics/2010 April 12
Sabtu, 2023-02-11 00:34:31

) ,   F ( cos ⁡ x ) = cos ⁡ ( 2 x ) ,   F ( e x ) = e 2 x . {\displaystyle {\mathfrak {F}}(\sin x)=\sin(2x),\ {\mathfrak {F}}(\cos x)=\cos(2x),\ {\mathfrak...

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Wikipedia:Articles for deletion/Jalan Pagoh–Parit Sulong
Kamis, 2025-10-02 06:40:17

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 18:38, 24 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Articles for deletion/Jalan Simpang Lima–Parit Sulong
Sabtu, 2025-10-25 06:31:31

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:21, 3 October 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2013 April 16
Sabtu, 2022-02-26 10:30:39

14:06, 16 April 2013 (UTC) ∫ − ∞ ∞ cos ⁡ ( x ) 1 + x 2 d x = π e {\displaystyle \int _{-\infty }^{\infty }{\frac {\cos(x)}{1+x^{2}}}dx={\frac {\pi }{e}}}...

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Wikipedia:Reference desk/Archives/Mathematics/2011 September 8
Kamis, 2023-03-09 22:40:15

cos ⁡ ( ∠ O P Q ) = a 2 + b 2 + 2 a b cos ⁡ β {\displaystyle r=|OQ|={\sqrt {|OP|^{2}+|PQ|^{2}-2|OP||PQ|\cos(\angle OPQ)}}={\sqrt {a^{2}+b^{2}+2ab\cos...

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Wikipedia:Reference desk/Archives/Mathematics/2017 January 4
Rabu, 2017-01-11 10:11:44

sphere is of radius 1. The area of the slice between heights z = cos ⁡ θ {\displaystyle z=\cos \theta } and z + d z {\displaystyle z+dz} is equal (for dz small...

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Wikipedia:Reference desk/Archives/Mathematics/2016 January 23
Minggu, 2016-01-31 18:45:13

(sin a+cosec a)2+(cos a+sec a)2=7+tan2 a+cot2 a — Preceding unsigned comment added by 116.202.251.201 (talk) 04:41, 23 January 2016 (UTC) True if the...

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Wikipedia:Good article reassessment/Simca Vedette/1
Rabu, 2025-03-05 17:15:07

section and I want the article to retain its GA status. Cos (X + Z) 17:59, 11 February 2025 (UTC) @CosXZ: Gutting an article to make it "Good"? Part of a "Good"...

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Wikipedia:Reference desk/Archives/Mathematics/2019 January 4
Sabtu, 2019-05-11 23:31:44

= a 0 + ∑ n = 1 N a n cos ⁡ ( n x ) + ∑ n = 1 N b n sin ⁡ ( n x ) ( x ∈ R ) {\displaystyle T(x)=a_{0}+\sum _{n=1}^{N}a_{n}\cos(nx)+\sum _{n=1}^{N}b_{n}\sin(nx)\qquad...

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Wikipedia:Reference desk/Archives/Mathematics/2009 December 31
Sabtu, 2023-02-11 00:30:38

y , z ) = ( cos ⁡ ( 2 π t ) , sin ⁡ ( 2 π t ) , 0 ) ( 2 + cos ⁡ ( 2 π s ) ) + ( 0 , 0 , sin ⁡ ( 2 π s ) ) . {\displaystyle (x,y,z)=(\cos(2\pi t),\sin(2\pi...

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Wikipedia:Reference desk/Archives/Mathematics/2011 May 25
Minggu, 2023-03-05 23:02:09

_{0}^{2\pi }\sin x\ dx=-1-(-1)=0} because cos ⁡ ( 2 π ) = cos ⁡ 0 = 1 {\displaystyle \cos \left(2\pi \right)=\cos 0=1} . In other words, the area of a circle...

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Wikipedia:Reference desk/Archives/Mathematics/2006 October 19
Sabtu, 2023-02-11 00:21:13

) = tan ⁡ ( x ) sgn ⁡ ( cos ⁡ ( x ) ) ( ( sgn ⁡ ( cos ⁡ ( 2 x ) ) + 1 ) / 2 )   +   sgn ⁡ ( sin ⁡ ( x ) ) ( ( sgn ⁡ ( − cos ⁡ ( 2 x ) ) + 1 ) / 2 ) {\displaystyle...

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Wikipedia:Articles for deletion/Jalan Terminal Feri
Sabtu, 2025-10-25 06:31:59

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:18, 3 October 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Science/2009 April 12
Jumat, 2022-03-04 13:59:27

\mathbf {F} _{3,1}\approx (-1+\delta cos\theta ,\delta sin\theta ,0)[1+3\delta cos\theta ]\approx (-1-2\delta cos\theta ,\delta sin\theta ,0)} F 3 , 2...

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Wikipedia:Reference desk/Archives/Science/2017 September 8
Rabu, 2017-09-13 07:59:37

}^{\psi =0}-3[\cos \psi -{\tfrac {1}{3}}\cos ^{3}\psi ]_{\psi =\pi }^{\psi =0}=1.6{\text{ J}}} x = sin ⁡ ψ  ,  y = cos ⁡ ψ  ,  d x = cos ⁡ ψ d ψ  ,  d...

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Wikipedia:Reference desk/Archives/Mathematics/2007 March 12
Rabu, 2022-02-23 11:44:52

consider that Reduce[z == Cos[x]^2 + Sin[x]^2] does nothing, producing z == Cos[x]^2 + Sin[x]^2 in contrast to Simplify[z == Cos[x]^2 + Sin[x]^2] which produces...

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Wikipedia:WikiProject Spam/LinkReports/ibm.biz
Sabtu, 2021-08-07 03:11:57

talk | history | links | watch | logs) (diff  !top) - Link: ibm.biz/bluemix_COS (R/Xmeta/L- removed) 2017-09-05 07:33:00 (UTC): User Smallpartnerenablement...

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Wikipedia:Reference desk/Archives/Mathematics/2009 March 20
Sabtu, 2023-02-11 00:32:15

rule or power rule.) cos ⁡ ( x ) + x 3 {\displaystyle \cos(x)+x^{3}} (Requires power rule and derivatives of sums.) sin ⁡ ( x ) ( cos ⁡ ( x ) + x 3 ) {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 3
Senin, 2025-08-18 06:11:13

{\displaystyle cosx\,} and this: cos ⁡ x {\displaystyle \cos x\,} Writing \cos x, with a backslash has three effects: (1) "cos" doesn't get italicized along...

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Wikipedia:Reference desk/Archives/Mathematics/2008 January 21
Kamis, 2022-02-24 14:55:51

justified. However, you could have written lim(1 - cos 4x)/x=lim(-(cos 4(0) - cos 4x)/(0 - x))=-lim(cos 4(0) - cos 4x)/(0 - x)=-0=0. Algebraist 20:16, 21 January...

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Wikipedia:Reference desk/Archives/Mathematics/2012 March 11
Jumat, 2022-02-25 21:46:26

2 cos ⁡ x {\displaystyle \log(1+y^{2})-2\cos x} is constant. Taking the antilogarithm: ( 1 + y 2 ) e − 2 cos ⁡ x {\displaystyle (1+y^{2})e^{-2\cos x}}...

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Wikipedia:Reference desk/Archives/Mathematics/2008 August 6
Jumat, 2022-02-25 21:31:05

{\displaystyle k={\frac {1}{cos(\alpha )}}} Multiply both sides by cos(a) and divide by k c o s ( α ) = 1 k {\displaystyle cos(\alpha )={\frac {1}{k}}} The...

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Wikipedia:Reference desk/Archives/Mathematics/2014 November 25
Sabtu, 2022-02-26 10:35:32

the ellipses by (x, y) = (cos t, cos(t + a)), so the ellipses touch the square at (1, cos a), (-1, -cos a), (cos a, 1), (-cos a. -1)) at t=0, π, -a, π...

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Wikipedia:Reference desk/Archives/Mathematics/2010 February 25
Kamis, 2022-02-24 15:02:14

z={\sqrt {13}}+2i{\sqrt {179}}} . Or, equivalently, x = 6 cos ⁡ ( α 3 ) − 13 {\displaystyle x=6\cos \left({\frac {\alpha }{3}}\right)-{\sqrt {13}}} , where...

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Wikipedia:Featured article review/Norte Chico civilization/archive1
Minggu, 2022-03-20 07:16:05

via FACBot (talk) 3:04, 19 March 2022 (UTC) [1]. Notified: Marskell, Eio-cos, Parkwells, 83d40m, WikiProject Peru, WikiProject Archaeology, WikiProject...

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Wikipedia:Stanford Archive answers/Math
Selasa, 2022-03-22 12:21:46

Bohemian dome -> quartic surface given by the parametric equation x=a*cos(u), y=b*cos(v) + a*sin(u), z=c*sin(v) where v is between 0 and 2*pi Connected Im...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 6
Senin, 2023-02-27 18:06:45

{x}{\sqrt {x^{2}+y^{2}}}}} ? The latter is cos ⁡ t {\displaystyle \cos t} , the former is cos ⁡ t / r {\displaystyle \cos t/r} . -- Meni Rosenfeld (talk) 06:28...

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Wikipedia:Reference desk/Archives/Mathematics/2010 August 29
Selasa, 2022-02-22 15:23:27

[ ( a 2 − b 2 ) ( cos ⁡ ( b t ) ) + b c sin ⁡ ( b t ) ] {\displaystyle {\frac {d}{b^{2}c^{2}-(a^{2}-b^{2})^{2}}}[(a^{2}-b^{2})(\cos(bt))+bc\sin(bt)]}...

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Wikipedia:Requests for adminship/Smith03
Rabu, 2010-03-10 02:57:36

as his writing productivity is twice mine). Not sure what he's doing, 'cos the summaries became more and more sporadic. Just some facts. --Menchi 21:33...

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Wikipedia:Articles for deletion/Jalan Bekoh
Sabtu, 2025-09-27 02:16:32

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 19:09, 19 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2013 December 29
Rabu, 2022-02-23 12:15:01

) − c o s ( x x ) d x {\displaystyle \int \limits _{0}^{2\pi }sin(x^{x})-cos(x^{x})\,dx} Which I know exists but it is so difficult to find. I know this...

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Wikipedia:Reference desk/Archives/Mathematics/2013 October 13
Jumat, 2022-02-25 21:49:35

1 n cos ⁡ θ k = 1 2 n ∑ e ∈ S cos ⁡ ( e 1 θ 1 + ⋯ + e n θ n ) {\displaystyle \prod _{k=1}^{n}\cos \theta _{k}={\frac {1}{2^{n}}}\sum _{e\in S}\cos(e_{1}\theta...

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Wikipedia:Articles for deletion/Derivative of Secant Function
Minggu, 2025-05-25 17:57:29

can be derived in one or two lines using the chain rule, the derivative of cos, and similar standard rules of calculus; it is pointless to derive it from...

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Wikipedia:Reference desk/Archives/Mathematics/2007 July 31
Sabtu, 2023-03-25 12:49:01

= ∫ 0 π cos ⁡ ( θ ) d θ = sin ⁡ ( 180 ∘ ) = ∫ 0 180 ∘ cos ⁡ ( θ ) d θ ? ? ? ; {\displaystyle {\begin{aligned}\sin(\pi )&=\int _{0}^{\pi }\cos(\theta )d\theta...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 22
Sabtu, 2023-02-11 00:38:11

I'm pretty sure that the derivative of sin(ax) for some constant a is a cos(ax), but I'm having trouble proving that. I keep getting stuck in a puddle...

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Wikipedia:Articles for deletion/Jalan Simpang Renggam–Layang Layang
Kamis, 2025-10-16 13:32:50

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:20, 3 October 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2025 July 11
Sabtu, 2025-07-26 08:06:06

at a given latitude: cos(az) = sin(eps) / cos(latitude) When the latitude exceeds 90° – eps (Earth's axial tilt), sin(eps) / cos(latitude) exceeds 1 so...

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Wikipedia:Reference desk/Archives/Mathematics/2018 November 19
Sabtu, 2018-12-01 11:18:56

2018 (UTC) Not exactly, but when you see something like cos ⁡ ( x 2 + 1 ) {\displaystyle \cos(x^{2}+1)} in an integral somewhere, it's a pretty safe bet...

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Wikipedia:Reference desk/Archives/Mathematics/2006 August 26
Sabtu, 2023-02-11 00:18:31

α {\displaystyle d\sin \alpha } and 3 2 d cos ⁡ α ± 1 2 d sin ⁡ α {\displaystyle {\frac {\sqrt {3}}{2}}d\cos \alpha \pm {\frac {1}{2}}d\sin \alpha } ....

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Wikipedia:Reference desk/Archives/Mathematics/2008 February 20
Rabu, 2022-02-23 11:48:53

the equation 1 2 + 1 4 ( cos ⁡ ( a x ) + cos ⁡ ( b x ) ) = 0 {\displaystyle {\frac {1}{2}}+{\frac {1}{4}}\left(\cos(ax)+\cos(bx)\right)=0} for any arbitrary...

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Wikipedia:Reference desk/Archives/Mathematics/2023 December 9
Minggu, 2023-12-17 11:00:32

equations a = s cos ⁡ φ + r sin ⁡ φ , b = s sin ⁡ φ + r cos ⁡ φ {\displaystyle a=s\cos \varphi +r\sin \varphi ,b=s\sin \varphi +r\cos \varphi } in the...

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Wikipedia:Articles for deletion/Jalan Kampung Makam
Sabtu, 2025-09-27 06:25:36

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 19:18, 19 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Articles for deletion/Jalan Bukit Mor
Sabtu, 2025-09-27 02:15:30

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 19:12, 19 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Articles for deletion/Jalan Serkat
Minggu, 2025-09-21 06:19:18

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails wp:NROAD. Cos (X + Z) 19:22, 13 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2011 November 6
Kamis, 2023-03-09 22:50:35

Yes: d d x cos 2 ⁡ ( 3 x ) = − 6 sin ⁡ ( 3 x ) cos ⁡ ( 3 x ) … ( = − 3 sin ⁡ ( 6 x ) ) . {\displaystyle {\frac {\operatorname {d} }{d\!x}}\cos...

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Wikipedia:Articles for deletion/Better the Devil You Know (film)
Senin, 2026-01-05 17:31:26

excuses no, no, 'Cos I've heard them all before, A hundred times or more, I'll forgive and forget, If you say you'll never go, 'Cos it's true what they...

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Wikipedia:Articles for deletion/Rosebank railway station
Selasa, 2025-06-17 01:46:37

WP refs) · FENS · JSTOR · TWL) A before search found just mentions of name. Cos (X + Z) 18:13, 9 June 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Articles for deletion/Alok Industries
Jumat, 2025-12-12 02:16:12

notability as per our wiki policy (that seems absurd to me especially for listed cos on our country's major exchange), the sources are more than enough for notability...

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Wikipedia:Articles for deletion/Jalan Kampung Raja, Pagoh
Sabtu, 2025-09-27 02:17:17

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 19:07, 19 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Featured and good topic candidates/Marshall Islands at the Olympics/archive2
Minggu, 2025-04-27 21:13:15

National Olympic Committee Contributor(s): Arconning, Cameron11598, EN-Jungwon, Cos (X + Z) Support: Clearly all encompassing, as it includes every appearance...

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Wikipedia:Articles for deletion/Special trig limits
Senin, 2025-11-24 04:11:58

how-to guide of bad quality). On a side note, the method used to find lim (1-cos x)/(sin x) requires (1) an non-trivial separation as a product of two terms...

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Wikipedia:WikiProject Spam/LinkReports/lanierpropertygroup.com
Sabtu, 2015-11-14 03:44:58

blacklist hits · user page logs · x-wiki · status · Google · StopForumSpam) COS-881 (talk · contribs · deleted contribs · blacklist hits · Edit filter search ·...

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Wikipedia:Reference desk/Archives/Mathematics/2008 April 22
Rabu, 2022-02-23 11:47:48

interval.for example, Cos(x)=x,if we start with any point within the interval (0,pi\2),say,0,then we will get, Cos(cos(cos(…….cos(0))=0.73908….it does...

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Wikipedia:Reference desk/Archives/Mathematics/May 2015
Selasa, 2022-02-22 15:14:59

Wikipedia:Reference_desk/Archives/Mathematics/2015 May 14 easy formulas to calculate sin(), cos() and other functions. Wikipedia:Reference_desk/Archives/Mathematics/2015...

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Wikipedia:Reference desk/Archives/Mathematics/2013 December 18
Jumat, 2022-02-25 21:48:02

December 2013 (UTC) sec is 1/cos and tan is sin/cos, so multiply through by cos α. you get something like (√2 - 1) (cos α + 1) = sin α which can be solved...

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Wikipedia:Articles for deletion/Danny Johnson (Guitar Hero)
Sabtu, 2025-11-29 21:35:05

there. Yellowman94Talk • I am the yellow man. That's what they call me, cos that's what I am. 00:00, 18 March 2012 (UTC) With the notable exception of...

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Wikipedia:Articles for deletion/Jalan Parit Raja Darat
Kamis, 2025-10-16 13:33:06

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:24, 3 October 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2008 November 16
Kamis, 2022-02-24 14:57:09

distinguished from mere "equations" in that sin 2 ⁡ x + cos 2 ⁡ x = 1 {\displaystyle \sin ^{2}x+\cos ^{2}x=1\qquad \qquad \!} is an identity whereas ƒ(x)...

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Wikipedia:Reference desk/Archives/Mathematics/2024 April 2
Rabu, 2024-04-17 07:10:45

{\displaystyle S} . We write r ( t ) = ( cos ⁡ ( t ) + X , S sin ⁡ ( t ) + Y ) {\displaystyle \mathbf {r} (t)=(\cos(t)+X,S\sin(t)+Y)} for t ∈ [ − θ / 2 ,...

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Wikipedia:Reference desk/Archives/Mathematics/2011 July 5
Jumat, 2022-02-25 21:42:57

can use f ( x ) = cos ⁡ ( 2 π x a ) − x ( cos ⁡ ( 2 π a ) − 1 ) {\displaystyle f(x)=\cos \left({\frac {2\pi x}{a}}\right)-x\left(\cos \left({\frac {2\pi...

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Wikipedia:Reference desk/Archives/Mathematics/2012 August 29
Jumat, 2022-02-25 21:45:00

general equation in polar coordinates     r = l 1 + e cos ⁡ θ {\displaystyle r={\frac {l}{1+e\cos \theta }}} (with the pole being the section's focus)...

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Wikipedia:Reference desk/Archives/Mathematics/2009 January 20
Kamis, 2022-02-24 14:59:11

BC. Then the length of DCE is L = 2 r A cos ⁡ α + 2 r B cos ⁡ β {\displaystyle L=2r_{A}\cos \alpha +2r_{B}\cos \beta } and you want to maximise this subject...

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Wikipedia:Reference desk/Archives/Mathematics/2008 March 2
Rabu, 2022-02-23 11:51:02

spherical cap is R ( 1 − cos ⁡ θ ) = R ( 1 + cos ⁡ ( arcsin ⁡ r x + arcsin ⁡ r X R x ) ) {\displaystyle R(1-\cos \theta )=R\left(1+\cos \left(\arcsin {\frac...

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Wikipedia:Reference desk/Archives/Mathematics/2007 May 22
Selasa, 2023-03-21 17:13:33

x ′ = x cos ⁡ θ − y sin ⁡ θ {\displaystyle x'=x\cos \theta -y\sin \theta \,} y ′ = x sin ⁡ θ + y cos ⁡ θ {\displaystyle y'=x\sin \theta +y\cos \theta \...

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Wikipedia:Reference desk/Archives/Mathematics/2007 February 14
Sabtu, 2022-02-26 10:24:49

{\sin(2x)}{4}}+C} ∫ cos ⁡ ( x ) 2 d x = ∫ 1 + cos ⁡ ( 2 x ) 2 d x = x 2 + 1 2 ∫ cos ⁡ ( 2 x ) d x = x 2 + sin ⁡ ( 2 x ) 4 {\displaystyle \int \cos(x)^{2}\,dx=\int...

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Wikipedia:Articles for deletion/Hachi
Selasa, 2023-02-07 07:01:43

this page. The result of the debate was Merge into List of Advance Wars COs. (6M/3K) DES (talk) 18:54, 18 October 2005 (UTC) He's the shopkeeper in the...

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Wikipedia:Reference desk/Archives/Mathematics/2023 September 16
Minggu, 2023-09-24 09:03:03

sin(x), cos(x), tan(x), cot(x), sec(x), csc(x) be transcendental numbers? 2. If x (in degrees) is an irrational algebraic number, must sin(x), cos(x), tan(x)...

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Wikipedia:Reference desk/Archives/Mathematics/2010 July 12
Sabtu, 2023-03-25 15:56:32

numerator in terms of cos and sin too it works out pretty simply - don't forget a famous identity involving the squares of cos and sin. AndrewWTaylor...

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Wikipedia:Reference desk/Archives/Mathematics/2008 June 6
Jumat, 2022-02-25 21:32:52

says that sin 4 ⁡ θ = 3 − 4 cos ⁡ 2 θ + cos ⁡ 4 θ 8 {\displaystyle \scriptstyle \sin ^{4}\theta ={\frac {3-4\cos 2\theta +\cos 4\theta }{8}}} , but there...

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Wikipedia:Reference desk/Archives/Mathematics/2010 November 27
Jumat, 2022-02-25 21:40:45

or again slightly differently as cos ⁡ ( 2 π a / x ) ⋅ cos ⁡ ( 2 π x ) = 1 {\displaystyle \cos(2\pi a/x)\cdot \cos(2\pi x)=1} , this comes down to e...

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Wikipedia:Reference desk/Archives/Mathematics/2008 May 8
Jumat, 2022-02-25 21:33:33

one which, after a change of variable, turned into ∫ cos ⁡ ( x 2 ) d x {\displaystyle \int \cos(x^{2})\,dx} , which I don't think has any elementary anti-derivative...

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Wikipedia:Articles for deletion/Jalan Parit Yusuf Darat
Rabu, 2025-10-01 13:48:36

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:25, 21 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2008 February 26
Rabu, 2022-02-23 11:49:24

sin ⁡ x cos ⁡ x {\displaystyle \sin 2x=2\sin x\cos x\,\!} with the Pythagorean identity sin 2 ⁡ x + cos 2 ⁡ x = 1 . {\displaystyle \sin ^{2}x+\cos ^{2}x=1\...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 19
Senin, 2023-02-27 18:06:51

distance to the edge along that line can be found by r cos ⁡ θ {\displaystyle {\frac {r}{\cos \theta }}} . Since we are integrating the area where it'd...

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Wikipedia:Articles for deletion/Jalan Ulu Tiram
Sabtu, 2025-11-01 11:17:16

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:17, 3 October 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/June 2012
Selasa, 2022-02-22 15:15:40

sk/Archives/Mathematics/2012 June 24 "Maximum girth" of a graph? Fitting cos to Data Points Wikipedia:Reference_desk/Archives/Mathematics/2012 June 25...

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Wikipedia:Reference desk/Archives/Mathematics/2016 January 28
Kamis, 2016-02-04 09:37:32

triangle having sides a, b and c was not computed by cos ⁡ A = b 2 + c 2 − a 2 2 b c {\displaystyle \cos A={\frac {b^{2}+c^{2}-a^{2}}{2bc}}} but rather by...

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Wikipedia:Today's featured article/April 6, 2011
Senin, 2017-01-16 06:24:16

Philitas of Cos (c. 340 – c. 285 BC) was a scholar and poet during the early Hellenistic period of ancient Greece. A Greek associated with Alexandria...

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Wikipedia:Meetup/Colorado/Invitation list
Selasa, 2025-08-19 07:46:47

User:Quesodood User:Quinn 33 User:Quintman User:Quizoid User:Ranger1991 User:Rmike cos User:Roadrunner Photog User:Rocky Mountain Wildcat User:S4n1HS22WMX695In...

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Wikipedia:Reference desk/Archives/Mathematics/2008 March 16
Kamis, 2022-02-24 14:56:27

− 1 + R θ   ′ ( s ) cos ⁡ ( ϕ i ) | d s {\displaystyle {\it {\lambda _{i}}}=c\int _{0}^{L}\!\left|-1+R\theta \ '\left(s\right)\cos \left({\it {\phi...

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Wikipedia:Reference desk/Archives/Mathematics/2012 August 5
Jumat, 2022-02-25 21:45:07

variable which is cos 2π/p + i sin 2π/p here. So Q(ξ) is the rational numbers plus their multiplicative inverses plus all roots of cos 2π/p + i sin 2π/p...

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Wikipedia:Articles for deletion/Cis (mathematics)
Sabtu, 2025-11-22 14:30:05

is when one wishes to prove that the function x ↦ cos ⁡ x + i sin ⁡ x , {\displaystyle x\mapsto \cos x+i\sin x,\,} although defined in a way that is not...

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Wikipedia:Articles for deletion/Segamat Inner Ring Road
Selasa, 2025-10-07 06:01:42

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 22:49, 22 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Science/2009 September 15
Sabtu, 2023-03-25 10:40:33

f ( t ) = A [ cos ⁡ ( 2 π d a y t ) cos ⁡ ψ cos ⁡ θ − sin ⁡ ψ sin ⁡ θ ] {\displaystyle f(t)=A[\cos({\frac {2\pi }{day}}t)\cos \psi \cos \theta -\sin \psi...

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Wikipedia:Reference desk/Archives/Mathematics/2007 November 5
Jumat, 2022-02-25 21:30:08

in "function" text? Say, cos ⁡ θ σ {\displaystyle \cos {\frac {\theta }{\sigma }}} compared with c o s θ σ {\displaystyle cos{\frac {\theta }{\sigma }}}...

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Wikipedia:Reference desk/Archives/Mathematics/March 2014
Selasa, 2022-02-22 15:15:20

deceleration equation Wikipedia:Reference_desk/Archives/Mathematics/2014 March 7 Cos(pi/2) Finding two unknowns in one equation What's the average change in cents...

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Wikipedia:Reference desk/Archives/Mathematics/2007 January 5
Jumat, 2025-10-17 23:26:20

2 2 x ) = 2 sin ⁡ ( 2 x ) cos ⁡ ( 2 x ) = 2 ( 2 sin ⁡ ( x ) cos ⁡ ( x ) ) cos ⁡ ( 2 x ) = 2 2 sin ⁡ ( x ) cos ⁡ ( x ) cos ⁡ ( 2 x ) {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/November 2005
Jumat, 2019-06-28 07:55:21

height h is just visible distance s away, then cos ⁡ s R = R R + h = 1 1 + h R . {\displaystyle \cos {\frac {s}{R}}={\frac {R}{R+h}}={\frac {1}{1+{\frac...

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Wikipedia:Reference desk/Archives/Mathematics/2019 May 25
Minggu, 2019-06-02 08:41:14

{\displaystyle f(x)=\sin({\frac {2\pi {x}}{a}})} or f ( x ) = cos ⁡ ( 2 π x a ) {\displaystyle f(x)=\cos({\frac {2\pi {x}}{a}})} will work. GeoffreyT2000 (talk)...

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Wikipedia:Reference desk/Archives/Mathematics/2008 March 26
Jumat, 2022-02-25 21:32:58

cos ⁡ φ , r sin ⁡ θ sin ⁡ φ , r cos ⁡ θ ) {\displaystyle \Phi (\phi ,\theta )=(r\,\sin \theta \,\cos \varphi ,r\,\sin \theta \,\sin \varphi ,r\,\cos \theta...

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Wikipedia:Articles for deletion/Mianus (neighborhood)
Kamis, 2026-01-08 05:45:52

this is to be merged, the appropriate target is Cos Cob. Mianus is essentially a subsection of the Cos Cob neighborhood that is further away from the coast...

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Wikipedia:Reference desk/Archives/Mathematics/2010 September 25
Jumat, 2022-05-20 02:08:23

(cos t, sin t), i.e. x = cos t, y = sin t To find its gradient you differentiate: dx⁄dt = –sin t, dy⁄dt = cos t, then dy⁄dx = dy⁄dt ÷ dx⁄dt = –cos t...

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Wikipedia:Reference desk/Archives/Mathematics/September 2015
Minggu, 2015-10-11 07:15:05

parametrization of en ellipse Compass equivalence theorem – in Polish? sin, cos, tan when θ is 0° or 90° The PDF of Children in Lake Wobegon...

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Wikipedia:Articles for deletion/Link building
Selasa, 2006-04-25 01:04:46

it's written. Brighterorange 14:29, 27 Apr 2005 (UTC) marked as copyvio 'cos it is --Doc Glasgow 22:17, 27 Apr 2005 (UTC)- someone who knows more about...

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Wikipedia:Reference desk/Archives/Mathematics/2008 February 8
Sabtu, 2023-02-11 00:27:01

expansion P l ( cos ⁡ θ ) ≡ ∑ j = 0 l a j cos ⁡ j θ {\displaystyle P_{l}(\cos \theta )\equiv \sum _{j=0}^{l}a_{j}\cos j\theta } The extension to cos ⁡ ( θ − ϕ...

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Wikipedia:FUCK YEAH!
Rabu, 2026-02-11 19:33:18

FUCK YEAH! Wiki is the only way, yeah. Brittanica your game is through, 'cos now you have to answer to Wikipedia - FUCK YEAH! So edit this page and sign...

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Wikipedia:Reference desk/Archives/Mathematics/2010 February 3
Sabtu, 2023-02-11 00:36:02

( a t b t c cos ⁡ t c sin ⁡ t ) ( 0 0 c cos ⁡ t c sin ⁡ t ) ( a cos ⁡ t a sin ⁡ t c cos ⁡ t c sin ⁡ t ) ( a cos ⁡ n t a sin ⁡ n t c cos ⁡ m t c sin ⁡...

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Wikipedia:Reference desk/Archives/Mathematics/2021 September 28
Selasa, 2022-07-05 22:20:57

one that d d x sin ⁡ x ∘ = d d x sin ⁡ ( π 180 x ) = π 180 cos ⁡ ( π 180 x ) = π 180 cos ⁡ x ∘ . {\displaystyle {\frac {d}{dx}}\sin x^{\circ }={\frac...

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Wikipedia:WikiProject Military history/Assessment/No. 86 Wing RAAF
Senin, 2022-03-07 14:56:21

earlier); I used "then" 'cos the OC had changed from the one originally mentioned and I hadn't noted the change-over ('cos I don't know when it happened)...

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Wikipedia:Peer review/British African-Caribbean community/archive1
Sabtu, 2008-02-16 20:26:00

discrimination in politics and schools. Maybe it should present the positive side, cos if it was all that bad why would anyone have immigrated in the first place...

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Wikipedia:Articles for deletion/Xenox
Minggu, 2025-01-19 23:45:36

--Nabla 16:22, 2005 Jun 23 (UTC) Keep, I've heard about the lan-party, maybe 'cos i'm from norway. I find this article informative, and it tells me what xenox...

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Wikipedia:Reference desk/Archives/Mathematics/2011 October 21
Rabu, 2022-02-23 12:10:00

(UTC) Rewrite sin 2 ⁡ x {\displaystyle \sin ^{2}x} as ( cos 2 ⁡ x ) ( tan 2 ⁡ x ) {\displaystyle (\cos ^{2}x)(\tan ^{2}x)} . Then factor and apply a pythagorean...

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Wikipedia:Reference desk/Archives/Mathematics/2013 August 25
Rabu, 2022-02-23 12:14:44

Can i integrate √cos(x) without using limits ? Vikas.geekyjock8 (talk) 18:51, 25 August 2013 (UTC) Do you mean, can you express the indefinite integral...

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Wikipedia:Reference desk/Archives/Mathematics/2009 October 5
Sabtu, 2023-03-25 12:16:44

follows that a n = ∫ 0 1 x cos ⁡ ( n π x 2 ) d x + ∫ 1 2 ( 2 − x ) cos ⁡ ( n π x 2 ) d x   . {\displaystyle a_{n}=\int _{0}^{1}x\cos \left({\frac {n\pi x}{2}}\right)dx+\int...

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Wikipedia:Articles for deletion/Samad khurram
Jumat, 2026-01-09 02:49:54

Delete per WP:BLP1E Mayalld (talk) 12:28, 23 December 2008 (UTC) Delete cos of that one event thing. Duffbeerforme (talk) 13:14, 23 December 2008 (UTC)...

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Wikipedia:Reference desk/Archives/Mathematics/2010 June 14
Jumat, 2022-02-25 21:39:44

t = 7 x 2 + 3 4 ln ⁡ x + 2 cos ⁡ ( x 2 ) | 2 3 {\displaystyle f(x)+\int _{2}^{3}y(x)\,dt=7x^{2}+{\tfrac {3}{4}}\ln x+2\cos(x^{2}){\Big \vert }_{2}^{3}}...

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Wikipedia:Help desk/Archives/2017 June 3
Sabtu, 2022-06-04 19:37:52

( x ′ y ′ ) = ( cos ⁡ θ − sin ⁡ θ sin ⁡ θ cos ⁡ θ ) ( x y ) {\displaystyle {\begin{pmatrix}x'\\y'\\\end{pmatrix}}={\begin{pmatrix}\cos \theta &-\sin \theta...

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Wikipedia:WikiProject Military history/This month in military history/August 4
Minggu, 2025-10-05 12:41:13

Portugal. 1704 - War of the Spanish Succession: Anglo-Dutch force seizes the rock of Gibraltar. 1824 - Battle of Cos fought between Turks and Greeks....

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Wikipedia:Articles for deletion/Jalan Pekan Gurney
Kamis, 2025-10-09 21:13:46

news · scholar · free images · WP refs) · FENS · JSTOR · TWL) Fails WP:NROAD. Cos (X + Z) 21:29, 21 September 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Reference desk/Archives/Mathematics/2016 February 2
Selasa, 2016-02-09 07:18:19

radians (1 radian = 180/pi) Cosine cos ⁡ x = 1 − x 2 2 ! + x 4 4 ! − x 6 6 ! + ⋯ {\displaystyle {\begin{aligned}\cos x&=1-{\frac {x^{2}}{2!}}+{\frac {x^{4}}{4...

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Wikipedia:Reference desk/Archives/Mathematics/2009 June 18
Kamis, 2022-02-24 14:59:39

well knonw f(x)= exp(-x²) and others of the same type g(x)=cos(x²) and g(θ)= square root(a²cos²θ + b²sin²θ) with wich one can calculate the perimeter of...

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Wikipedia:Reference desk/Archives/Mathematics/2006 September 25
Jumat, 2023-03-10 19:41:31

b cos ⁡ ( γ ) {\displaystyle c^{2}=a^{2}+b^{2}-2ab\cos(\gamma )} so 8 = 3 + 3 − 2 ∗ 3 ∗ cos ⁡ ( γ ) {\displaystyle 8=3+3-2*3*\cos(\gamma )} so cos ⁡ (...

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Wikipedia:Reference desk/Archives/Mathematics/2012 December 10
Kamis, 2022-02-24 15:08:17

⁡ x − 2 x 2 + c o s ( x e ) d x {\displaystyle \int _{1}^{e}\ln x-2x^{2}+cos(x^{e})\,dx} using the Riemann integral sum method. If x , y {\displaystyle...

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Wikipedia:Articles for deletion/Lisa Pilcher
Senin, 2006-04-24 20:54:57

18 Apr 2005 (UTC) Delete vanity. The JPS 08:46, 18 Apr 2005 (UTC) Keep 'cos her friend Ben rocks!!! err, on second thoughts Delete as vanity. Rje 00:16...

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Wikipedia:Featured article review/Trigonometric functions/archive1
Jumat, 2023-02-10 05:28:47

infinity) if cos = 0. This may not be clear to a lay reader otherwise. The fact, that every periodic function can be expressed by sin and cos deserves a...

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Wikipedia:Reference desk/Archives/Mathematics/2014 July 4
Kamis, 2022-02-24 15:12:53

11:12, 4 July 2014 (UTC) What's the limit of ( 1 − cos ⁡ ( x ) ) / ( x 2 ) {\displaystyle (1-\cos(x))/(x^{2})} As x {\displaystyle x} approaches 0?? Georgia...

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Wikipedia:Reference desk/Archives/Mathematics/2016 May 30
Senin, 2016-06-06 09:07:40

evolution section? It says the grim reaper curve is y = − log ⁡ cos ⁡ x {\displaystyle y=-\log \cos x} . --CiaPan (talk) 10:17, 30 May 2016 (UTC) For another...

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Wikipedia:Today's featured article/April 8, 2011
Kamis, 2011-04-07 09:15:58

the post-1960 horror film. (more...) Recently featured: Phan Dinh Phung – Philitas of Cos – Polyozellus Archive By email More featured articles About...

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Wikipedia:Articles for deletion/List of vehicles in GTA 3
Sabtu, 2022-02-12 15:08:34

as a section on the Grand Theft Auto III article but needs some expansion cos that is a really poor list with just 2 cars!! --PrincessBrat 13:52, 7 April...

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Wikipedia:Articles for deletion/Boyzone Brother 2011 Tour
Senin, 2026-01-05 22:05:31

fancruft. TbhotchTalk C. 20:42, 11 August 2010 (UTC) Delete - fails WP:CRYSTAL 'cos it aint over till the Boyz sang. Eddie.willers (talk) 23:42, 11 August 2010...

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Wikipedia:Today's featured article/April 7, 2011
Jumat, 2011-04-01 10:38:50

the French surrounded his forces. (more...) Recently featured: Philitas of Cos – Polyozellus – William Henry Harrison Archive By email More featured articles...

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Wikipedia:Today's featured article/October 28, 2015
Senin, 2022-01-17 00:13:36

Austin. Upon learning that the army was divided, General Martín Perfecto de Cos sent Colonel Domingo Ugartechea with 275 soldiers to attack the scouting...

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Wikipedia:Wikipedia Signpost/2012-01-23/In the news
Sabtu, 2024-01-06 08:41:30

up. Then the UK bunch had to do press for the US media (hence me on NPR) 'cos San Francisco wouldn't be awake at the time. (Though, of course, they were...

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Wikipedia:Articles for deletion/Angie McCartney
Kamis, 2025-11-13 04:54:30

4 April 2015 (UTC) Delete - Classic example of WP:NOTINHERITED - Just 'cos your someones Mum doesn't mean you get an article. –Davey2010Talk 01:40,...

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Wikipedia:Featured topic removal candidates/Lists of UEFA club competition winning managers/archive1
Jumat, 2025-12-12 20:40:09

Hold per NapHit Cos (X + Z) 19:11, 6 August 2024 (UTC) Keep now that List of Intercontinental Cup winning managers is promoted. Cos (X + Z) 00:46, 4...

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Wikipedia:Articles for deletion/Spiders vs Housefly
Kamis, 2022-03-31 13:21:22

I can't fathom the rules. This is not a game forum. Anyway, spiders win, cos they rock, so that's the matter closed. TheMadBaron 10:06, 16 September 2005...

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Wikipedia:Reference desk/Archives/Mathematics/2025 July 3
Jumat, 2025-07-18 10:11:20

line of sight with the horizontal, and putting γ = cos ⁡ α , σ = sin ⁡ α , {\displaystyle \gamma =\cos \alpha ,\sigma =\sin \alpha ,} the equation for the...

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Wikipedia:Reference desk/Archives/Mathematics/2017 March 23
Kamis, 2017-03-30 08:18:49

  −   x )   =   π x sin ⁡ π x Γ ( 1 2 + x )   ⋅   Γ ( 1 2 − x )   =   π cos ⁡ π x Γ ( 1 4 + x ) / Γ ( 1 4 − x )   =   π 2 x ⋅ ζ ( 1 2 − 2 x ) ζ ( 1 2...

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Wikipedia:Reference desk/Archives/Mathematics/2012 September 29
Kamis, 2022-02-24 15:10:21

r l + 1 ) P l ( cos ⁡ θ ) {\displaystyle V(r,\theta )=\sum _{l=0}^{\infty }\left(A_{l}r^{l}+{\frac {B_{l}}{r^{l+1}}}\right)P_{l}(\cos \theta )} , where...

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Wikipedia:Reference desk/Archives/Mathematics/2008 January 2
Jumat, 2022-02-25 21:32:06

curve : ( t − t cos ⁡ ( 2 arctan ⁡ ( 4 t ) ) − t 2 sin ⁡ ( 2 arctan ⁡ ( 4 t ) ) , t 2 + 1 − t sin ⁡ ( 2 arctan ⁡ ( 4 t ) ) + t 2 cos ⁡ ( 2 arctan ⁡ (...

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Wikipedia:Today's featured article/April 9, 2011
Sabtu, 2011-04-09 21:16:20

Places in 1973. (more...) Recently featured: The Pit and the Pendulum – Phan Dinh Phung – Philitas of Cos Archive By email More featured articles About...

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Wikipedia:Articles for deletion/Bollix
Selasa, 2022-03-29 15:05:52

covers this spelling. Gwernol 13:03, 5 April 2006 (UTC) Redirect to bollocks (cos that's what it's a load of) Sweetie Petie 13:07, 5 April 2006 (UTC) Delete...

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Wikipedia:Reference desk/Archives/Mathematics/2009 April 2
Sabtu, 2023-02-11 00:29:06

where one was supposed to substitute x {\displaystyle x} for r cos ⁡ θ {\displaystyle r\cos \theta \,} and y {\displaystyle y} for r sin ⁡ θ {\displaystyle...

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Wikipedia:Reference desk/Archives/Mathematics/2008 January 28
Sabtu, 2023-02-11 00:27:08

pi; I can't figure out how to display it right) I'm stuck at f(pi)*cos(pi)- ƒ(cos*f'); it keeps looping around from f(x)sinx to f'(x)cosx and so on and...

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Wikipedia:Reference desk/Archives/Mathematics/2017 October 23
Senin, 2017-10-30 07:07:14

eccentricity of the resulting conic section C1 is cos ⁡ α cos ⁡ β . {\displaystyle {\frac {\cos \alpha }{\cos \beta }}.} Now suppose we project C1 onto the...

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Wikipedia:Articles for deletion/Christophe Pradère
Selasa, 2025-12-16 03:11:30

media and won't push Christophe over the WP:GNG line, which is a shame 'cos he seems like a talented chap. Best Alexandermcnabb (talk) 11:43, 24 June...

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Wikipedia:Reference desk/Archives/Mathematics/2008 July 14
Sabtu, 2023-02-11 00:27:19

the other. If you look at the vector field ( cos ⁡ ( 2 π x ) , sin ⁡ ( 2 π x ) ) {\displaystyle {\bigl (}\cos(2\pi x),\sin(2\pi x){\bigr )}} on the torus...

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Wikipedia:Reference desk/Archives/Mathematics/2007 January 29
Selasa, 2022-02-22 15:27:55

length of the bisector from vertex A is 2*b*c*cos(A/2)/(b+c), the others having an obvious cyclic symmetry. cos(A/2) can be found in terms of a, b and c,...

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Wikipedia:Articles for deletion/The 6th Assassin-Titan
Minggu, 2023-02-12 04:43:00

WP:N, WP:V—Encephalon | ζ | Σ 16:14:57, 2005-08-14 (UTC) Strike WP:V, just 'cos somethings fictional doesn't mean you can't verify it exists. Whether you'd...

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Wikipedia:Reference desk/Archives/Mathematics/2007 October 10
Rabu, 2022-02-23 11:46:22

by Meni, 1 − cos ⁡ 2 k π n = 2 sin 2 ⁡ k π n , {\displaystyle 1-\cos {\tfrac {2k\pi }{n}}=2\sin ^{2}{\tfrac {k\pi }{n}},} . so 1 − cos ⁡ 2 k π n = 2...

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Wikipedia:Reference desk/Archives/Mathematics/2024 July 23
Kamis, 2024-08-08 13:28:45

radius). This is based on N ( ϕ ) cos ⁡ ( ϕ ) = R ( ψ ) cos ⁡ ( ψ ) {\displaystyle N(\phi )\cos(\phi )=R(\psi )\cos(\psi )} (so, technically, isn't N...

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Wikipedia:Reference desk/Archives/Mathematics/2010 May 17
Sabtu, 2022-02-26 10:27:35

2010 (UTC) Change cot ⁡ x {\displaystyle \cot x} to cos ⁡ x sin ⁡ x {\displaystyle {\frac {\cos x}{\sin x}}} and solve by substitution, would be my guess...

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Wikipedia:Reference desk/Archives/Mathematics/2007 July 23
Rabu, 2022-02-23 11:44:07

know the parametric set for a torus of I=0 is: { x=x0+(M+N*cos(u))*cos(v), y=y0+(M+N*cos(u))*sin(v), z=z0+(N*sin(u)) } I know neither how to incline...

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Wikipedia:Articles for deletion/Wille And The Bandits
Senin, 2025-11-24 05:06:04

international reviews? 'Cos that'd nail NMUSIC #4 - David Gerard (talk) 19:21, 16 September 2016 (UTC) @Isaidnoway: Did you ever turn these up? 'Cos at present it's...

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Wikipedia:Reference desk/Archives/Mathematics/March 2024
Sabtu, 2024-04-06 09:00:40

March 20 Whether it coincides with a simpler function Wikipedia:Reference_desk/Archives/Mathematics/2024 March 22 Sin, cos and ellipses...

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Wikipedia:Reference desk/Archives/Mathematics/2011 April 6
Kamis, 2022-02-24 15:04:45

counterexample for non-integer n, consider f ( x ) = cos ⁡ ( 5 π x ) + 2 x {\displaystyle f(x)=\cos(5\pi x)+2x} , which certainly is continuous with f(0)=f(1)=1...

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Wikipedia:Reference desk/Archives/Mathematics/2009 January 11
Sabtu, 2023-03-25 12:28:11

\theta =\theta _{f}+\theta _{s}\,\!} , are cos ⁡ ( Σ θ ) + cos ⁡ ( Δ θ ) sin ⁡ ( Δ θ ) = 2 cos ⁡ ( θ s ) cos ⁡ ( θ f ) sin ⁡ ( Δ θ ) = 2 tan ⁡ ( θ f )...

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Wikipedia:Reference desk/Archives/Mathematics/2023 July 17
Selasa, 2023-07-25 08:26:43

( n ) = ζ τ n + ξ n ( α 1 cos ⁡ ( n β ) + α 2 sin ⁡ ( n β ) ) , {\displaystyle a(n)=\zeta \tau ^{n}+\xi ^{n}(\alpha _{1}\cos(n\beta )+\alpha _{2}\sin(n\beta...

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Wikipedia:Reference desk/Archives/Mathematics/2008 August 19
Rabu, 2022-02-23 11:48:11

is by using spherical co-ordinates: x = √390*(cos(θ))*(sin(Φ)) y = √390*(sin(θ))*(sin(Φ)) z = √390*(cos(Φ)) for Φ belonging to [0,π] and θ belonging to...

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Wikipedia:Reference desk/Archives/Mathematics/January 2006
Minggu, 2025-09-14 21:46:28

\left(x-y\right)=\sin x\cos y-\cos x\sin y} cos ⁡ ( x + y ) = cos ⁡ x cos ⁡ y − sin ⁡ x sin ⁡ y {\displaystyle \cos \left(x+y\right)=\cos x\cos y-\sin x\sin y} cos ⁡ ( x...

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Wikipedia:Reference desk/Archives/Mathematics/2009 March 12
Sabtu, 2023-02-11 00:32:00

the trigonometric polynomial T in x is: subs(x=0, subs(cos=sin, T)); this transforms all "cos" in "sin" and then evaluates the result at 0, as suggested...

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Wikipedia:Reference desk/Archives/Mathematics/2007 August 16
Jumat, 2022-02-25 21:27:42

21:19, 16 August 2007 (UTC)) sin(a+ib) = sin(a)*cosh(b) + cos(a)*sinh(b)i sinh(a+ib) = sinh(a)*cos(b) + cosh(a)*sin(b)i I love my Voyage 200... hope that...

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Wikipedia:Reference desk/Archives/Mathematics/2008 May 5
Kamis, 2022-02-24 14:57:00

know just two formulas: rewriting cos x and sin x using Euler's formula: cos ⁡ x = e i x + e − i x 2 , {\displaystyle \cos x\,=\,{e^{ix}+e^{-ix} \over 2}\...

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Wikipedia:Reference desk/Archives/Mathematics/2010 July 4
Jumat, 2022-02-25 21:39:33

− s sin ⁡ t {\displaystyle x=e^{-s}\sin t} and y = e − s cos ⁡ t {\displaystyle y=e^{-s}\cos t} subject to u(x,y)=v(s,t), I have to find ∂ v ∂ s {\displaystyle...

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Wikipedia:Articles for deletion/Justlife
Selasa, 2025-12-16 06:47:16

mainspace and it's not WP:GNG and certainly not WP:NCORP. Can't draftify 'cos of existing draft, so am suggesting this mainspace article is deleted until...

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Wikipedia:Reference desk/Archives/Mathematics/2015 October 11
Minggu, 2021-10-10 19:09:23

⁡ θ ) d − 2 2 + 2 cos ⁡ θ d θ ∫ 0 π ( sin ⁡ θ ) d − 2 d θ {\displaystyle {\frac {\int _{0}^{\pi }(\sin \theta )^{d-2}{\sqrt {2+2\cos \theta }}\,d\theta...

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Wikipedia:Articles for deletion/Singapore sea brothers
Minggu, 2022-02-13 18:05:31

UtherSRG (talk) 15:09, 10 October 2006 (UTC) it has the right to be deleted cos it was double. just don't bite the newcomers. i'm making a new one. — Preceding...

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Wikipedia:Reference desk/Archives/Mathematics/2011 July 6
Minggu, 2023-03-05 22:33:44

then you're better off with γ ( t ) = ( r cos ⁡ t + p , r sin ⁡ t + q ) . {\displaystyle \gamma (t)=(r\cos t+p,r\sin t+q).} — Fly by Night (talk) 17:42...

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Wikipedia:Reference desk/Archives/Mathematics/April 2006
Rabu, 2024-10-02 00:51:19

angles by: b 0 = cos ⁡ ( θ / 2 ) cos ⁡ ( ϕ + ψ ) , {\displaystyle b_{0}=\cos(\theta /2)\cos(\phi +\psi ),} b 1 = sin ⁡ ( θ / 2 ) cos ⁡ ( ϕ − ψ ) , {\displaystyle...

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Wikipedia:Miscellany for deletion/User:WinSrev
Kamis, 2022-03-24 11:17:38

should be made to this page. The result of the debate was speedy delete cos I should never have userfied it. -- RHaworth 06:32, 14 November 2006 (UTC)...

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Wikipedia:Reference desk/Archives/Mathematics/2008 November 4
Sabtu, 2023-02-11 00:28:19

and c = r 2 1 − cos ⁡ 360 n {\displaystyle c=r{\sqrt {2}}\,{\sqrt {1-\cos {\frac {360}{n}}}}} , then 16 = n 2 ( 1 − cos ⁡ 360 n ) cos 2 ⁡ 180 n {\displaystyle...

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Wikipedia:Articles for deletion/Legal recognition of same-sex couples in the United States
Kamis, 2022-03-31 12:17:45

debate was merged --SPUI (talk) 23:11, 11 August 2005 (UTC) I merged it cos it said to merge it horseboy 22:02, 11 August 2005 (UTC) You did what now...

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Wikipedia:Good article reassessment/Chrysler 180/1
Kamis, 2025-05-01 21:11:13

15:45, 27 March 2025 (UTC) @Z1720 I think I have resolved your concerns. Cos (X + Z) 21:06, 11 April 2025 (UTC) The discussion above is closed. Please...

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Wikipedia:Reference desk/Archives/Mathematics/2012 August 14
Kamis, 2023-03-09 22:44:27

= 1 ∞ 4 ( − 1 ) k k 2 cos ⁡ ( k x ) {\displaystyle {\frac {\pi ^{2}}{3}}+\sum _{k=1}^{\infty }{\frac {4(-1)^{k}}{k^{2}}}\,\cos(kx)\,} is a Fourier series...

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Wikipedia:Articles for deletion/Pantacles of Athens
Jumat, 2025-11-14 20:25:19

has been shown for keeping other articles (Dandes of Argos, Philinus of Cos (athlete), Oebotas of Dyme, Eurybus of Athens), and discussions should be...

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Wikipedia:Reference desk/Archives/Mathematics/2010 December 31
Kamis, 2023-03-09 22:42:50

(P*cos-5*sin, 5*cos+P*sin). Note, cos is (bx-ax)/distance and sin is (by-ay)/distance. You don't actually use a cos or sin function. D will be at (P*cos+5*sin...

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Wikipedia:Articles for deletion/1991–92 French Championship season
Jumat, 2025-08-01 05:31:56

free images · WP refs) · FENS · JSTOR · TWL) A Before Search found nothing. Cos (X + Z) 20:26, 24 July 2025 (UTC) Note: This discussion has been included...

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Wikipedia:Articles for deletion/Hit By An Ambulance
Selasa, 2023-02-07 08:34:44

that Johnny Cash wrote Hurt... --Etacar11 00:57, 3 Jun 2005 (UTC) Keep, cos they aint all dat bad they just wanted 2 get noticed, sorry we didnt follow...

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Wikipedia:Reference desk/Archives/Mathematics/2018 October 6
Minggu, 2018-10-14 08:31:50

getting confused. If you want to evaluate ln(cos(.5)) on a calculator, first you enter .5, then you press the cos key, then you press the ln key, so really...

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Wikipedia:Reference desk/Archives/Mathematics/2006 August 22
Sabtu, 2023-02-11 00:18:20

{\displaystyle h_{1}(x)={\frac {e^{x}+e^{-x}}{2}}} h 2 ( x ) = 2 cos 2 ⁡ x − 1 {\displaystyle h_{2}(x)=2\cos ^{2}x-1\,\!} In the first example we immediately notice...

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Wikipedia:Reference desk/Archives/March 2004 II
Kamis, 2019-06-27 05:43:04

1 − e λ N 1 − e λ + 2 − e λ N cos ⁡ ( ω N ) − e λ cos ⁡ ( ω ) + e λ ( N + 1 ) cos ⁡ ( ω ( N − 1 ) ) 1 + e 2 λ − e λ cos ⁡ ( ω ) ) {\displaystyle {\frac...

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Wikipedia:Reference desk/Archives/Mathematics/2015 June 26
Jumat, 2015-07-03 10:09:27

= x − ( y c e i l − sin ⁡ ( x ) ) cos ⁡ ( x ) {\displaystyle x_{\mathrm {ceil} }=x-(y_{\mathrm {ceil} }-\sin(x))\cos(x)} (I reckon), where y c e i l =...

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Wikipedia:WikiProject Video games/Deletion/February 2008
Sabtu, 2008-08-09 06:15:09

List of Advance Wars: Days of Ruin COs at Wikipedia:Articles for deletion/List of Advance Wars: Days of Ruin COs (15 February 2008 – 21 February 2008)...

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Wikipedia:Reference desk/Archives/Mathematics/2012 September 13
Jumat, 2022-02-25 21:47:19

of R under addition taking t in R to a rotation matrix: t-> {(cos t, sin t),(-sin t, cos t)} in SO(2). This looks irreducible if operating on R x R. But...

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Wikipedia:Reference desk/Archives/Mathematics/2018 November 4
Senin, 2018-11-12 08:58:07

crux of the issue is the law of cosines with it's cos θ term; measurement becomes simpler when the cos θ = 0 and you can drop that term. There are certain...

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Wikipedia:Articles for deletion/Extensive reading
Senin, 2023-03-20 01:17:37

22 September 2005 (UTC) Delete - I reckon this does count as an advert, 'cos it was probably created to drive traffic to the linked website, even if the...

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Wikipedia:Reference desk/Archives/February 2004 II
Kamis, 2026-04-23 12:07:52

y=-u\sin(\theta )+v\cos(\theta )} u = x cos ⁡ ( θ ) − y sin ⁡ ( θ ) {\displaystyle u=x\cos(\theta )-y\sin(\theta )} v = x sin ⁡ ( θ ) + y cos ⁡ ( θ ) {\displaystyle...

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Wikipedia:Articles for deletion/Non-symbiotic Acinomycetes
Kamis, 2026-01-08 12:22:40

was created by the scientist who discovered them in the lake, whilst WP:COS does allow this, this article is not going to go anywhere in my opinion....

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Wikipedia:Featured article candidates/Battle of Lipantitlán/archive1
Jumat, 2022-02-04 11:41:49

so all communication between Cos and the Mexican interior must be transferred overland. This was a long journey, so Cos was unable to quickly request...

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Wikipedia:Articles for deletion/Nasty wing
Kamis, 2022-03-31 12:30:18

15:31, 29 September 2005 (UTC) I don't think this page should be deleted cos this was a real phenomenon at the time and deserves to be saved for posterity...

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Wikipedia:Reference desk/Archives/Mathematics/2007 December 14
Jumat, 2022-02-25 21:28:02

period 2·π, it can be written a0 + a1·cos(t) + a2·cos(2·t) + a3·cos(3·t) + a4·cos(4·t) + a5·cos(5·t) + a6·cos(6·t) + ... See Fourier_series#Canonical_form...

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Wikipedia:Articles for deletion/Bigbasket
Selasa, 2025-12-16 02:28:24

(UTC) Delete I tagged it as potentially not WP:GNG-worthy during NPP simply 'cos I thought I'd sent too much to AfD for the day. So here's a delete vote....

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Wikipedia:Featured and good topic candidates/Re-Logic/addition1
Jumat, 2025-08-22 00:08:02

Promised article for creation is now passed GAN, making the topic complete. --Cos (X + Z) 23:15, 6 July 2025 (UTC) Support Idiosincrático (talk) 23:23, 6 July...

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Wikipedia:Reference desk/Archives/Entertainment/2007 March 20
Kamis, 2022-02-24 13:31:51

something on your mind, i know you might find, these are the days so come on, cos this is the life, and you know I'm right I remember it from the 1990s and...

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Wikipedia:Reference desk/Archives/Mathematics/2007 July 5
Kamis, 2022-02-24 14:52:28

between sin2(θ) and cos2(θ). In this case, finding cos2(θ) and thinking about (cos(θ),sin(θ)) as a point on the unit circle should help. Check back if you can't...

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Wikipedia:Articles for deletion/Bitcoin Suisse
Jumat, 2025-12-12 03:41:33

decision yet? Streepjescode (talk) 11:47, 24 March 2020 (UTC) I wasn't sure, 'cos I don't read German :-) I'll hit the translation sites and see what it looks...

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Wikipedia:WikiProject Women in Red/Meetup/27
Selasa, 2026-05-12 23:01:02

housewife never expecting to be notable Anne Elwood - she wrote women's biogs cos she could find any The Dog Who Had Kittens (wiki has no article on author...

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Wikipedia:Featured list candidates/List of district municipalities in British Columbia/archive1
Sabtu, 2024-12-28 07:25:38

candidates/List of district municipalities in British Columbia/archive1 Nominator(s): Cos (X + Z) & Hwy43 (talk) 03:35, 8 December 2024 (UTC) My 3rd FLC, and this...

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Wikipedia:Articles for deletion/Jaded (definition)
Kamis, 2025-01-23 23:12:42

to this page. The result of the debate was Everyone loves Magical Trevor, cos' the tricks that he does are ever so clever. Speedy deleted. Esteffect 22:22...

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Wikipedia:Copyright problems/2011 August 2
Selasa, 2023-03-14 23:20:57

http://www.admiraltysec.moe.edu.sg/cos/o.x?c=/wbn/pagetree&func=view&rid=1040956 and http://www.admiraltysec.moe.edu.sg/cos/o.x?c=/wbn/pagetree&func=view&rid=1059682...

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Wikipedia:Articles for deletion/Norm Wolfinger
Minggu, 2025-12-14 06:26:52

at the national spotlight" but that certainly wasn't a media spotlight, 'cos there's no coverage! There's quite a lot over the shooting of Trayvon Martin...

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Wikipedia:Reference desk/Archives/Mathematics/2010 March 6
Sabtu, 2023-02-11 00:37:58

b cos ⁡ ( γ ) {\displaystyle c^{2}=a^{2}+b^{2}-2ab\cos(\gamma )\,} l 2 = r 2 + R 2 − 2 ∗ R r cos ⁡ ( γ ) {\displaystyle l^{2}=r^{2}+R^{2}-2*Rr\cos(\gamma...

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Wikipedia:Reference desk/Archives/Mathematics/May 2007
Selasa, 2022-02-22 15:15:16

progressions Wikipedia:Reference_desk/Archives/Mathematics/2007 May 30 2 cos^2 x = 1 Summation of a vanishing series stuf ash collisions Math/physics...

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Wikipedia:Reference desk/Archives/Mathematics/2012 February 22
Rabu, 2022-05-18 01:38:04

sin(x) at each point is exactly cos(x). Thus the first derivative of the sine is the cosine, or in formula d/dx sin(x) = cos(x). If we were to define a function...

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Wikipedia:Reference desk/Archives/Mathematics/2017 February 15
Rabu, 2017-02-22 09:06:16

function of the angle is of the form: r = A 1 + B cos ⁡ ( θ ) {\displaystyle r={\frac {A}{1+B\cos(\theta )}}} An infinitesimal arc length element d s...

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Wikipedia:Reference desk/Archives/Mathematics/December 2007
Sabtu, 2023-03-25 10:42:23

flightpaths Wikipedia:Reference_desk/Archives/Mathematics/2007 December 18 s = cos(a).sin(a) 5 Cats and 3 mice Sophomore's dream Wikipedia:Reference_desk/A...

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Wikipedia:Reference desk/Archives/Mathematics/2012 February 10
Jumat, 2025-01-10 22:23:21

taking cos(latitude) into account" — yes, I know, that's the entire goal of the question is to figure out the scaling factor. Using just cos(lat) doesn't...

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Wikipedia:Reference desk/Archives/Computing/2012 February 28
Rabu, 2022-02-23 10:15:16

distances is as follows: DIST = R * acos[sin(lat1)*sin(lat2) + cos(lat1)*cos(lat2)*cos(long1-long2)] R is the radius of the Earth, so could be omitted...

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Wikipedia:Articles for deletion/Mari Kaimo
Jumat, 2025-11-14 13:14:27

covered by WP:NACTOR? (significant role in multiple significant TV shows?) Cos this person has anchored news programs in almost all the major local TV networks...

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Wikipedia:Featured and good topic candidates/Grand Prix of Figure Skating/archive1
Kamis, 2026-03-05 12:08:57

this. Cos (X + Z) Pray for those whose loved ones have died or were injured in the 2026 Tumbler Ridge shooting 00:07, 12 February 2026 (UTC) @CosXZ: Thank...

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Wikipedia:Articles for deletion/Adorján Czipleá
Kamis, 2025-12-18 23:35:12

articles CosXZ (talk) 18:05, 20 December 2023 (UTC) Note: This discussion has been included in the list of Christianity-related deletion discussions. CosXZ (talk)...

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Wikipedia:Reference desk/Archives/Mathematics/2011 November 18
Senin, 2023-02-27 18:03:22

2011 (UTC) It comes from the identity e i θ = cos ⁡ ( θ ) + i sin ⁡ ( θ ) {\displaystyle e^{i\theta }=\cos(\theta )+i\sin(\theta )} . Plug in θ = π {\displaystyle...

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Wikipedia:Articles for deletion/Dotspotter
Senin, 2023-02-06 21:16:22

Mailer Diablo 14:24, 3 October 2006 (UTC) Delete as crystal balling and per [1] - cos Big Daddy says so. QuagmireDog 16:21, 3 October 2006 (UTC) Speedy delete...

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Wikipedia:Reference desk/Archives/Mathematics/2008 March 10
Selasa, 2022-03-08 12:01:48

+ 1 ) x π i = cos ⁡ ( ( 2 k + 1 ) x ) + i sin ⁡ ( ( 2 k + 1 ) x ) {\displaystyle (-1)^{x}=(e^{(2k+1)\pi i})^{x}=e^{(2k+1)x\pi i}=\cos((2k+1)x)+i\sin((2k+1)x)\;\...

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Wikipedia:Reference desk/Archives/Science/2007 December 24
Sabtu, 2023-02-11 02:17:25

that: sin(x+y) = sin(x)cos(y) + cos(x)sin(y) ...and... sin(x-y) = sin(x)cos(y) - cos(x)sin(y) Add those two equations and the cos(x)sin(y) terms drop out...

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Wikipedia:Redirects for discussion/Log/2014 May 25
Kamis, 2021-08-19 01:06:48

redirect. There is another chap with an English name, I forget his name, cos I just used his book to stop a door banging in the wind, who does this kind...

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