a) Sketch, on the same diagram, the graphs of y = 1/2 sin and sin1/2 for

a) Sketch, on the same diagram, the graphs of y = 1/2 sinθ and sin1/2 θ for 0 ≤ θ ≤ 2π.

b) State the number of solutions
1
of the equation sin 0 = 2 sin 1/2 θ for 0 ≤ θ ≤ 2π.