Question: 1. What is the relationship between the two sets A and B if A B = ? 2. What is the relationship between the

1. What is the relationship between the two sets A and B if A ∩ B = Ø?
2. What is the relationship between the two sets A and B if n (A ∪ B) = n (A) + n (B)?
3. Suppose that A and B are subsets of the set U. Under what circumstance will A ∩ B = B?
4. Suppose that A and B are subsets of the set U. Under what circumstance will A ∩ B = B?

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