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Sabina3927
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3. Fie mulţimile: A={1,2,3,5), B= {0,2,4,6} și C= {1,3,6,7,8,9}. Calculează:
AUB;
BUA;
AnB;
(AUB) UC;
AU(BUC);
BOA;
A\B;
(A\B)\C;
A\(B\C).
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B\A;
1.

Răspuns :

AuB={0,1,2,3,4,5,6}
BuA={0,1,2,3,4,5,6}
AnB={2}
(AuB)uC={0,1,2,3,4,5,6,7,8,9}
Au(BuC)={0,1,2,3,4,5,6,7,8,9}
BuA={1,2,3,5,6,7,8,9}
A\B={1,3,5}
(A\B)\C={5}
B\A={0,4,6}