Question

2 sin 2x cos x + 3 sin x=0 Find all solutions in interval (0,2pi)

Answer 1

Have u tried Khan academy?

Answer 2

\[\sin(2x) = 2\sin x \cos x\]
\[\rightarrow 4\sin x \cos^{2} x +3\sin x = 0\]
factor out the sin x
\[\sin x (4\cos^{2} x +3) = 0\]
set each factor to 0 and solve