Trigonometry Examples

$\arccos (- \sqrt{\frac{2}{2}})$

Step 1

Divide $2$ by $2$ .

$\arccos (- \sqrt{1})$

Step 2

Any root of $1$ is $1$ .

$\arccos (- 1 \cdot 1)$

Step 3

Multiply $- 1$ by $1$ .

$\arccos (- 1)$

Step 4

The exact value of $\arccos (- 1)$ is $π$ .

$π$

Step 5

The result can be shown in multiple forms.

Exact Form:

$π$

Decimal Form:

$3.14159265 \dots$

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