Example

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

Question

$$\frac { \cos x } { \sin x }$$

Evaluate

$\cot(x)$

Differentiate w.r.t. x

$-\frac{1}{\left(\sin(x)\right)^{2}}$

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