engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Mathematics Trigonometry Inverse Trigonometric Functions
The number of real solutions of the equation \(\rm \sqrt{1+\cos 2x}=\sqrt2 \cos^{-1}(\cos x)\) in \(\left[\frac{\pi}{2}, \pi \right] \) is:
1
1
2
2
3
0
4
infinitely many