Trigonometry Examples

$\arctan (\tan (\frac{4 π}{5}))$

Step 1

The result can be shown in multiple forms.

Exact Form:

$\arctan (\tan (\frac{4 π}{5}))$

Decimal Form:

$- 0.62831853 \dots$

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