Trigonometry Examples

$- 2 \sin (90)$

Step 1

The exact value of $\sin (90)$ is $1$ .

$- 2 \cdot 1$

Step 2

Multiply $- 2$ by $1$ .

$- 2$

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