Answer
$\frac{\cos\theta}{\sin^{2}\theta}$
Work Step by Step
Given expression is-
$\csc\theta \cot\theta$
= $\csc\theta \times\cot\theta$
= $\frac{1}{\sin\theta} \times\frac{\cos\theta}{\sin\theta}$
= $\frac{\cos\theta}{\sin^{2}\theta}$