Enter a problem...

Trigonometry Examples

Popular Problems

Find the Exact Value cos(arccos(-0.3))

$\cos (\arccos (- 0.3))$

Step 1

The functions cosine and arccosine are inverses.

$- 0.3$

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

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

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