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#10156 Bangla Language & Literature General Level 0

cotθcot3θ=1 সমীকরণের সাধারণ সমাধান -

  1. A π(2n+1)π4
  2. B π(2n+1)π8
  3. C π(2n-1)π2
  4. D πnπ4
Answer: B - π(2n+1)π8

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