defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Trigonometry Inverse Trigonometric Functions
The greatest and least values of (sin–1x)2 + (cos–1x)2 are respectively
1
\(\frac{5 \pi^2}{4}\) and \(\frac{\pi^2}{8}\)
2
\(\frac{\pi}{2}\) and \(\frac{−\pi}{2}\)
3
\(\frac{\pi^2}{4}\) and \(\frac{−\pi^2}{4}\)
4
\(\frac{\pi^2}{4}\) and 0