Talk:Function composition/Archive
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This is an archive of an inactive discussion and should not be edited.
Hi, I'm trying to figure this out, I am not sure about my answer.
Given Funtions f(x) = Square root of x and g(x) = x2 + 18x + 81
a, Determine(fog)(x) and simplify
(fog)(x) = Square root of x^2 +18x +81
= square root of (x+9)^2
= x+9
b, Find the Domain of (fog)(x)
???????
Is answer to a correct and if so how do i find its domain ??
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