Algebra Examples

$2 \sin (10 °) \cos (10 °)$

Step 1

Apply the sine double-angle identity.

$\sin (2 \cdot 10 °)$

Step 2

Multiply $2$ by $10 °$ .

$\sin (20)$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\sin (20)$

Decimal Form:

$0.34202014 \dots$

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