Trigonometry Examples

$\tan (450)$

Step 1

Rewrite $\tan (450)$ in terms of sines and cosines.

$\frac{\sin (450)}{\cos (450)}$

Step 2

Remove full rotations of $360$ ° until the angle is between $0$ ° and $360$ °.

$\frac{\sin (450)}{\cos (90)}$

Step 3

The exact value of $\cos (90)$ is $0$ .

$\frac{\sin (450)}{0}$

Step 4

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

Undefined