Given s = sin , where 1/2 < < , find, in terms of s, (a) cos (b) sin 2 (c) sin 3 (d)

Given s = sin θ, where 1/2π < θ < π, find, in terms of s,

(a) cosθ 

(b) sin 2θ

(c) sin 3θ 

(d) sin 1/2 θ