Trigonometry Examples

$\frac{1}{\cos (90)}$

Step 1

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

$\frac{1}{0}$

Step 2

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

Undefined

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