Teaching HTET PGT Level 3 - 2024 Mock Test Mathematics Trigonometry Inverse Trigonometric Functions

Which of the following corresponds to the principal value branch of tan−1 ?

1
\(\left(−\frac{\pi}{2}, \frac{\pi}{2}\right)\)
2
\(\left[−\frac{\pi}{2}, \frac{\pi}{2}\right]\)
3
\(​\left(−\frac{\pi}{2}, \frac{\pi}{2}\right)\) − {0}
4
(0, π)
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