Trigonometry Examples

$\tan (- 270)$

Step 1

Rewrite $\tan (- 270)$ in terms of sines and cosines.

$\frac{\sin (- 270)}{\cos (- 270)}$

Step 2

Evaluate $\cos (- 270)$ .

$\frac{\sin (- 270)}{0}$

Step 3

The expression contains a division by $0$ . The expression is undefined.

Undefined