For a∈(−1,1) and b∈(−1,1) if sin−1(2a1+a2)+sin−1(2b1+b2)=2 – InterviewSolution

1.	For a∈(−1,1) and b∈(−1,1) if sin−1(2a1+a2)+sin−1(2b1+b2)=2tan−1x, then the value of x is
Answer» For $a \in (- 1, 1)$ and $b \in (- 1, 1)$ if ${sin}^{- 1} (\frac{2 a}{1 + a^{2}}) + {sin}^{- 1} (\frac{2 b}{1 + b^{2}}) = 2 {tan}^{- 1} x$ , then the value of $x$ is

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