Trigonometry Examples

$(30) (\cos (90))$

Step 1

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

$30 \cdot 0$

Step 2

Multiply $30$ by $0$ .

$0$

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