Answer
See below.
Work Step by Step
$LHS=tan\theta+cot\theta=\frac{sin\theta}{cos\theta}+\frac{cos\theta}{sin\theta}=\frac{sin^2\theta+cos^2\theta}{sin\theta cos\theta}=\frac{1}{sin\theta cos\theta}=sec\theta csc\theta=RHS$
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