1 . সার্বিক সেট U ={1,2,3,4,5,6}, A = {1,3,5}, B = {3,5,6} হলে A'∩B' হবে--
- A. {1,4}
- B. {2,4}
- C. {2,3,5}
- D. {2,4,6}
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