2cos ^2 x-3sinx=0 помогите

Question

2cos ^2 x-3sinx=0 помогите

Answer 1

2(1-sin^2x)-3sinx=0
2-2sin^2x-3sinx=0
-2sin^2x+3sinx+2=0
2sin^2x-3sinx-2=0
(2sinx+1)(sinx-2)=0