Question

i. Write all the subsets of the set {0,1).
ii. Let A and B are two disjoint sets, given that n(AUB) = 2.
What are the possible values of n(A) and n(B)?
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Answer 1

Answer:

obviously if A and B are disjoint set so their is no common element between A and B so. if there is no common element between A and B then n(AυB)=n(A)+n(B) i.e no of element of set A plus the no of element of set B.