A={ 1 ,2 ,3 ,5}
B={2 ,3 ,4 }
C={3 ,5 ,7 }
D={6 ,8}
Reuniune=se iau toate elementele multimilor
Intersectie=se iau elementele comune
A\B=ce elemente are multimea A si nu are multimea B
B\A=ce elemente are multimea B si nu are multimea A
a)
A∪B={1,2,3,4,5}
A∪C={1,2,3,5,7}
A∪D={1,2,3,5,6,8}
B∪C={2,3,4,5,7}
B∪A={1,2,3,4,5}
D∪C={3,5,7,6,8}
(A∪B)∪C={1,2,3,4,5,7}
(A∪B)∪(A∪C)={1,2,3,4,5,7}
B∪C∪D={2,3,4,5,6,7,8}
b)
A∩B={2,3}
A∩C={3,5}
A∪D={1,2,3,5,6,8}
B∩C={3}
(A∪B)∩C={3,5}
(A∩D)∪B=∅
(A∩B)∪(B∩C)={2,3}
(A∩B)∩(A∩C)={3}
c)
A\B={1,5}
B\A={4}
A\C={1,2}
C\A={7}
C\B={5,7}
A\D={1,2,3,5}
(A\B)∩(C\B)={5}
Un alt exercitiu gasesti aici: https://brainly.ro/tema/871259
#SPJ4
