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1. cos 2θ = 1/√2 সমীকরনের সাধারন সমাধান কোনটি?

  • A. 2nπ±π/3
  • B. 2nπ±π/3
  • C. 2nπ±π/3
  • D. 2nπ±π/3

Answer: Option D

Explanation:

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