Precalculus Examples

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

Step 1

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

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

Step 2

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

$\cot (x) - \tan (x)$