Enter a problem...

Precalculus Examples

Popular Problems

Solve over the Interval cos(x)=-( square root of 7)/3 , pi/2<x<pi , sin(2x)

I am unable to solve this problem.

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

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

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