Find all solutions of the equation in the interval 0 2pi cos

Find all solutions of the equation in the interval [0, 2pi). cos theta = 3/4 If there is more than one solution, separate them with commas. Do not round any intermediate computations, and round your answer(s) to the nearest hundredth.

Solution

cos =3/4

=cos^-1(3/4),2pi -cos^-1(3/4)

=0.7227, 2pi -0.7227

=0.72, 5.56 radians