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1. x+y,x-y,x2-y2

  • A. 0
  • B. 0
  • C. 0
  • D. 0

Answer: Option B

Explanation:

আমরা জানি, x2-y2 = (x+y)(x-y)

এখন, (x+y),(x-y)ও (x+y)(x-y) এর গ.সা.গু =১। 

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