Enter a problem...

Trigonometry Examples

Popular Problems

Solve for ? x=arccos(-0.39876459)

$x = \arccos (- 0.39876459)$

Step 1

Evaluate $\arccos (- 0.39876459)$ .

$x = 1.98096562$

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

Please ensure that your password is at least 8 characters and contains each of the following:

a number
a letter
a special character: @$#!%*?&