jag7850 jag7850
  • 17-09-2022
  • Mathematics
contestada

(15 points) Find the number of elements in A1∪A2∪A3 if there are 102 elements in A1, 992 elements in A2 and 9975 elements in A3 in each of the following situations:


(a) The sets are pairwise disjoint.




(b) A1⊆A2⊆A3.



(c) There are 14 elements common to each pair of sets and 4 elements in all three sets.

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