Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Trigonometry Inverse Trigonometric Functions
Find the value of tan-1 (-1), if its value lies between \(\rm \frac{-\pi}{2}\) and \(\rm \frac{\pi}{2}\).
1
\(\rm \frac{-\pi}{2}\)
2
\(\rm \frac{-3\pi}{4}\)
3
\(\rm \frac{-5\pi}{4}\)
4
\(\rm \frac{-\pi}{4}\)
5
None of the above