If the first derivative of the function f(x)=sin(cos−1(1−22x1+22x) – InterviewSolution

1.	If the first derivative of the function f(x)=sin(cos−1(1−22x1+22x)) with respect to x at x=1 is −balog2, where a,b are coprime, then \|4b−2a\|=
Answer» If the first derivative of the function $f (x) = sin ({cos}^{- 1} (\frac{1 - 2^{2 x}}{1 + 2^{2 x}}))$ with respect to $x$ at $x = 1$ is $\frac{- b}{a} log 2,$ where $a, b$ are coprime, then $\| 4 b - 2 a \| =$

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