2 ^ -1 ( )= ^ -1 (2cosec x) 1. 0 2. 3 3. 4 4. 2 - Vidyadip

Question

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

$0$
$\frac{\pi}{3}$
$\frac{\pi}{4}$
$\frac{\pi}{2}$

✓

Answer

$\frac{\pi}{4}$

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