The unit circle is shown below. Complete the following. $($a$)$ Sketch $0=240\backslash$deg in standard position on the unit circle. Find the lengths of the legs of its reference triangle. These are labeled a and b in the figure below, when an angle is sketched. Then use your reference triangle to find the coordinates of point P$.$ Use exact values and not decimal approximations.$$Use the coordinates of point P to find the following. Use exact values and not decimal approximations.