EX 1. Fie multimile A={1,2,3,4,5,6,7}, B={5,6,7,8,9},C={1,2,3,7,12}. AFLATI: AU(B intersectat cu C) EX 2 Se considera multimile A={1,2}, B={1,2,5}, C={4,6}.Efectuati: (AUB) intersectat C; AU(B intersectat C); A\(B intersectat C).
EX 3 Se dau multimile: A={1,2}, B={1,2,5}, C=4,6}. Efectuati:
(AUB) intersectat C); AU(B intersectat C); C\(A U B).
