need help on working this i got lost on it

Question

Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)

2 sin 2θ − 3 sin θ = 0

θ =

 

Answer 1

The trigonometric equation is .

Fundamental identities: .

Factors are and .

General solution :

General solution :

If , then , where is an integer.

The general solution is