Precalculus Examples

$\cos (2 x) = \frac{\sqrt{3}}{2}$ , $(0, 4 π)$

Step 1

The result can be shown in multiple forms.

Exact Form:

$\cos (2 x) = \frac{\sqrt{3}}{2}, (0, 4 π)$

Decimal Form:

$\cos (2 x) = 0.86602540 \dots, (0, 4 π)$

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