CUET Preparation Today
CUET
-- Mathematics - Section B1
Inverse Trigonometric Functions
The principal value of $cot^{-1}\left(\frac{-1}{\sqrt{3}}\right)$ is :
$-\frac{2\pi }{3}$
$\frac{2\pi }{3}$
$\frac{\pi }{3}$
$-\frac{\pi }{3}$
