Trigonometry Examples

$\cos (2 \cdot \frac{1}{3})$

Step 1

Combine $2$ and $\frac{1}{3}$ .

$\cos (\frac{2}{3})$

Step 2

The result can be shown in multiple forms.

Exact Form:

$\cos (\frac{2}{3})$

Decimal Form:

$0.78588726 \dots$

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