Teaching MPPSC Assistant Professor Mock Test Series 2025 Mathematics Trigonometry Inverse Trigonometric Functions
\(\sin \left\{\tan ^{-1}\left(\frac{1-x^2}{2 x}\right)+\cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right)\right\}\) is equal to
1
0
2
1
3
√2
4
\(\frac{1}{\sqrt{2}}\)