2 ^ -1 ( )= ^ -1 (2 cosec x) - Vidyadip

MCQ

$2\tan^{-1}(\cos\text{x})=\tan^{-1}(2\ \text{cosec x})$

A
$0$
B
$\frac{\pi}{3}$
✓
$\frac{\pi}{4}$
D
$\frac{\pi}{2}$

✓

Answer

Correct option: C.

$\frac{\pi}{4}$

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