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1. 4 ( sin2θ   +   cos θ ) = 5  সমীকরণের সাধারণ সমাধান -

  • A. θ = 2 n π ± π / 2
  • B. θ = 2 n π ± π / 2
  • C. θ = 2 n π ± π / 2
  • D. θ = 2 n π ± π / 2

Answer: Option B

Explanation:

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