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1.  A = { − 1 , 1 , 2 }  এবং  B = ∅  হলে,  A ∩ B  এর মান --

  • A. {-1,1,2}
  • B. {-1,1,2}
  • C. {-1,1,2}
  • D. {-1,1,2}

Answer: Option C

Explanation:

দেওয়া আছে,                  A=-1,1,2                  B=∅∴A∩B =-1,1,2∩∅               =∅

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