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1. ax + by = a2 + b2 এবং 2bx - ay = ab সমীকরণে (x, y) এর মান কত?

  • A. (3a, 4b)
  • B. (3a, 4b)
  • C. (3a, 4b)
  • D. (3a, 4b)

Answer: Option D

Explanation:

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