Question

Fie multimile A ={1,2,3,4,5,6,7} B={5,6,7,8,9}si C={1,2,3,7,12}.Aflati :
A reunit cu B
A reunit cu C
B reunit cu C
A intersectat cu B
A intersectat cu C
B intersectat cu C
A reunit cu B si cu C
A intersectat cu B si intersectat cu C
A/B
B/C
A /C
A reunit cu(B intersectat cu C)
Repede va roooogg!!

Answer 1

AUB={1;2;3;4;5;6;7;8;9}
AUC={1;2;3;4;5;6;7;

Answer 2

A∪B={1,2,3,4,5,6,7,8,9}
A∪C={1,2,3,4,5,6,7,12}
B∪C={1,2,3,7,8,9,12}
A∪B∪C={1,2,3,4,5,6,7,8,9,12}
A∩B∩C={7}
A/B={1,2,3,4}
B/C={5,6,8,9}
A∪(B∩C)={1,2,3,4,5,6,7,8,9}∪{7}={1,2,3,4,5,6,7,8,9}