Prove that the following trigonometric identity, beginning with the side of the equation that seems to be more complicated and starting the proof by restricting x to values where the identity is valid. Make sure that the complete identity statement is included at the end of the proof.

sec 0 - 1 tan 0 2 sin 0 tan 8 sec 0 +1 1+cos0 Find all exact solutions. 3 sin x = 2 cos2 x sin x tan x = sin x Solve the equations below, finding exact solutions on the interval 0