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MathsJEE Main 23 Jan 2026, Shift 1·Q16·MCQ·Easy–moderate

Trigonometry · Trigonometric equations in an interval

Number of solutions of 3cos⁡2θ+8cos⁡θ+33=0\sqrt3\cos2\theta + 8\cos\theta + 3\sqrt3 = 0, θ∈[−3π,2π]\theta \in [-3\pi, 2\pi] is:
  1. (1)0
  2. (2)5
  3. (3)3
  4. (4)4

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