The principal value of ^ -1 ( 3 5 ) is: - Vidyadip

MCQ

The principal value of $\tan^{-1}\Big(\tan\frac{3\pi}{5}\Big)$ is:

A
$\frac{2\pi}{5}$
✓
$\frac{-2\pi}{5}$
C
$\frac{3\pi}{5}$
D
$\frac{-3\pi}{5}$

✓

Answer

Correct option: B.

$\frac{-2\pi}{5}$

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