Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Trigonometry Inverse Trigonometric Functions
If \(\rm \cos\left(\sin^{−1} \frac{2}{5}+\cos^{−1} x\right)\) = 0, then x is equal to
1
\(\frac{1}{5}\)
2
\(\frac{2}{5}\)
3
0
4
More than one of the above
5
None of the above