Precalculus Examples

$2 \sin (23) \cos (23)$

Step 1

Apply the sine double-angle identity.

$\sin (2 \cdot 23)$

Step 2

Multiply $2$ by $23$ .

$\sin (46)$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\sin (46)$

Decimal Form:

$0.71933980 \dots$

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