Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) 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
More than one of the above
5
None of the above