Question

Fie mulțimea:A={1,2,3,5}, B={0,2,4,6}, C={1,3,6,7,8,9}.Calculează:
AuB, BuA, AnB, (AuB)uC, Au(BuC), BnA, A\B, B\A, (A\B) \C, A\(B\C).
Urgentt dau coroana​

Answer 1

Răspuns:

A U B {0,1,2,3, 4,5,6}

B U A aceeași, reuniunea este comutativa

A n B {2}

(AUB)U C= {0,1,2,3,4,5,6}U{1,3,6,7,8,9}= {0,1,2,3,4,5,6,7,8,9}

A U B U C= {0,1,2,3,4,5,6,7,8,9}

Mai știu si

A\B= {1,3,5}

B\A={0,4,6}

A\B\C= {5}

Answer 2

Răspuns:

A U B {0,1,2,3,4,5,6}

B U A {0,1,2,3,4,5,6}

A n B {2}

(A U B) U C {0,1,2,3,4,5,6} U {1,3,6,7,8,9} = {0,1,2,3,4,5,6,7,8,9}

A U B U C {0,1,2,3,4,5,6,7,8,9}