Trigonometry Examples

$\tan (90 °)$

Step 1

Rewrite

$\tan (90 °)$ in terms of sines and cosines.

$\frac{\sin (90 °)}{\cos (90 °)}$

Step 2

The exact value of

$\cos (90 °)$ is

$0$ .

$\frac{\sin (90 °)}{0}$

Step 3

The expression contains a division by

$0$ . The expression is undefined.

Undefined

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$