The number of solutions of the equation sin2x = SiNx in the interval (0,2 π) is () A. 1B. 2C. 3D. 4

The number of solutions of the equation sin2x = SiNx in the interval (0,2 π) is () A. 1B. 2C. 3D. 4

Sin2x = 2sinxcosx = SiNx | SiNx = 0 or cosx = 12 ∵ x ∈ (0, 2 π) | x = π or π 3 or 5 π 3, so select C