Question

4. If A - B = {1,4,6,8,9), B - A = {3,10,11,12}, then write possible elements
of sets A and B.
7. If n(A) = 12,n(B) = 20, then find
i) Maximum number of elements in AUB and AnB.
ii) Minimum number of elements in AUB and A intersection B

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Answer 1

AUB{1,4,6,8,9,3,10,11,12}

this you answer