Solve, in the interval 0 < 360, the following equations. Give your answers to 1 d.p. a. 3 cos = 2 sin

Solve, in the interval 0 ≤ θ < 360°, the following equations. Give your answers to 1 d.p.

a. 3 cos θ = 2 sin (θ + 60°)

b. sin (θ + 30°) + 2 sin θ = 0

c. cos (θ + 25°) + sin (θ + 65°) = 1

d. cos θ = cos (θ + 60°)