Precalculus Examples

$\cos (2 x) + \cot (2 x)$

Step 1

Rewrite $\cot (2 x)$ in terms of sines and cosines.

$\cos (2 x) + \frac{\cos (2 x)}{\sin (2 x)}$

Step 2

Convert from $\frac{\cos (2 x)}{\sin (2 x)}$ to $\cot (2 x)$ .

$\cos (2 x) + \cot (2 x)$