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If A and B are two disjoint sets and n(A) = 15 and n(B) = 10. Find n(A ∪ B) and n(A ∩ B). |
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Answer» n(A ∩ B) = 0 ∵ A and B are disjoint net ∴ n(A ∪ B) = n(A) + n(B) = 15 + 10 = 25. |
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