Simplify the following functions so that your answers do not include trig functions. In each case, assume x∈(−1,1). cos(2sin−1x−π2)

Deesbek asked Aug 11, 2023

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Deesbek asked Aug 11, 2023

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21 votes

Answer:

cos(2sin−1x)=1−2x2

Explanation:

et sin−1x=θ , so that, x=sinθ,|x|≤1,θ∈[−π2,π2].

Paul Stovell answered Aug 16, 2023

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