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Question Number 92438 by Ar Brandon last updated on 06/May/20
find the domaine and simplify the function f(x)=arcos(((1−x^2 )/(1+x^2 )))
findthedomaineandsimplifythefunctionf(x)=arcos(1−x21+x2)
Commented by Joel578 last updated on 07/May/20
g(x) = cos^(−1) (x) has domain −1 ≤ x ≤ 1, so f(x) = cos^(−1) (((1 − x^2 )/(1 + x^2 ))) has domain x ∈ R
g(x)=cos−1(x)hasdomain−1⩽x⩽1,sof(x)=cos−1(1−x21+x2)hasdomainx∈R

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