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