Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\tan \theta + \cot \theta$$

Evaluate

$\frac{2}{\sin(2\theta )}$

Differentiate w.r.t. θ

$-\frac{4\cot(2\theta )}{\sin(2\theta )}$

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