Question

Cosx(2sinx+1)=0

Answer 1

\(\large\color{black}{ \displaystyle \cos x (2 \sin x+ 1)=0 }\)

\(\large\color{black}{ \displaystyle \cos x =0 }\) or \(\large\color{black}{ \displaystyle 2 \sin x+ 1=0 }\)

Answer 2

Ok. Thanks :)

Answer 3

Wait. Then what?