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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. {1,4}
- C. {1,4}
- D. {1,4}
Answer: Option B
Explanation:
A'= U-A
= {1,2,3,4,5,6} - {1,3,5}
={2,4,6}
B'= U-B
= {1,2,3,4,5,6} - {3,5,6}
= {1,2,4}
A'nB'
={2,4,6} n {1,2,4}
= {2,4}
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