Trigonometry Examples

$\frac{\sin (2 x) - \tan (x)}{\cos (2 x)}$

Step 1

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

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

Step 2

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

$\frac{\sin (2 x) - \tan (x)}{\cos (2 x)}$