10. 5 . Find sin (2:13) and cos (23:) if sin (2:) = and :1: is in Quadrant I. 13 . Express sin4 (3:) in terms of the rst power of cosine. . Find the exact value of sin (15). 3 SE SE . Find sin (2) and tan () if sin (11;) = 5 and w is in Quadrant I. 2 . Write sin (2 tan1(a)) as an algebraic expression in terms of 1:. 7 . Find the exact value of sin (2 cos'1 () ). 25 . Write sin (22:) cos (33:) as a sum of triognometric functions. . Write cos (4x) cos (6w) as a product of trigonometric functions. . Solve 5 sin 6 1 = 0. (Find all solutions). Solve tan2 6 4 = 0. (Find all solutions)