Trigonometry Examples

$2 \sin (45) \cos (45)$

Step 1

Apply the sine double-angle identity.

$\sin (2 \cdot 45)$

Step 2

Multiply $2$ by $45$ .

$\sin (90)$

Step 3

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

$1$

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