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Fie multimile A={11,13,21,31,49,55}, B={13,31,48,55}si C={11,13,21,48}.aflati a)A∪B b)A∩B c)A∪C d)A∩C

Răspuns :

Marmotagamer12311
AUB=11,13,21,31,48,49,55
A∩B=13,31,55
AUC=11,13,21,31,48,49,55
A∩C=11,13,21
Loredana2023
a)A∪B={11,13,21,31,48,49,55}
b)A∩B={13,31,55}
c)A∪C={11,13,21,31,48,49,55}
d)A∩C={11,13,21}
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