jee-main 2013 Q66

jee-main · India · 23apr Trigonometric equations in context

The number of solutions of the equation $\sin 2 x - 2 \cos x + 4 \sin x = 4$ in the interval $[ 0,5 \pi ]$ is :
(1) 3
(2) 5
(3) 4
(4) 6

The number of solutions of the equation $\sin 2 x - 2 \cos x + 4 \sin x = 4$ in the interval $[ 0,5 \pi ]$ is :\\
(1) 3\\
(2) 5\\
(3) 4\\
(4) 6