Find the Exact Value tan(810 degrees )

$\tan (810 °)$

Rewrite $\tan (810 °)$ in terms of sines and cosines.

$\frac{\sin (810 °)}{\cos (810 °)}$

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

$\frac{\sin (810 °)}{\cos (90)}$

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

$\frac{\sin (810 °)}{0}$

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

Undefined