$\text { If } \sin ^{-1}\left(2 a / 1+a^{2}\right)+\sin ^{-1}\left(2 b / 1+b^{2}\right)=2 \tan ^{-1} x, \text { prove that } x=(a+b / 1-a b)$

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3 years ago

Given sin^-1 (2a/ 1+ a²) + sin^-1 (2b/ 1+ b²) = 2 tan^-1 x

RD Sharma Solutions for Class 12 Maths Chapter 4 Inverse Trigonometric Functions Image 112