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1. 2(cos²θ-sin²θ)=√3 হলে, θ এর মান কত?

  • A. 2nπ±π/6
  • B. 2nπ±π/6
  • C. 2nπ±π/6
  • D. 2nπ±π/6

Answer: Option D

Explanation:

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