Evaluate arccos((- square root of 3)/2)

$\arccos (\frac{- \sqrt{3}}{2})$

Step 1

Move the negative in front of the fraction.

$\arccos (- \frac{\sqrt{3}}{2})$

Step 2

The exact value of $\arccos (- \frac{\sqrt{3}}{2})$ is $\frac{5 π}{6}$ .

$\frac{5 π}{6}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\frac{5 π}{6}$

Decimal Form:

$2.61799387 \dots$