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23-11-2022
Mathematics

contestada

Find the number of elements inA_1 ∪ A_2 ∪ A_3if there are 100 elements in each set and if a) the sets are pairwise disjoint. b) there are 50 common elements in each pair of sets and no elements in all three sets. c) there are 50 common elements in each pair of sets and 25 elements in all three sets. d) the sets are equal.

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