jee-main 2024 Q65

jee-main · India · session1_01feb_shift2 Quadratic trigonometric equations

The number of solutions of the equation $4\sin^2 x - 4\cos^3 x + 9 - 4\cos x = 0$; $x \in [-2\pi, 2\pi]$ is:
(1) 1
(2) 3
(3) 2
(4) 0

The number of solutions of the equation $4\sin^2 x - 4\cos^3 x + 9 - 4\cos x = 0$; $x \in [-2\pi, 2\pi]$ is:\\
(1) 1\\
(2) 3\\
(3) 2\\
(4) 0