Precalculus Examples

$\arctan (- \frac{4}{2})$

Step 1

Divide $4$ by $2$ .

$\arctan (- 1 \cdot 2)$

Step 2

Multiply $- 1$ by $2$ .

$\arctan (- 2)$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\arctan (- 2)$

Decimal Form:

$- 1.10714871 \dots$

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