Question

evaluate cot^-1(sin(-pi/2))

Answer 1

Step-by-step explanation:

We have,

$\cot^{ - 1} \bigg( \sin \bigg( - \frac{\pi}{2} \bigg) \bigg)$

$= \cot^{ - 1} ( - 1)$

$= 3\frac{\pi}{4}$