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Reprezinta fiecare multime,folosind proprietatea caracteristica a elementelor sale : A{0,1,2,3,4,5,6,7,8,9,10,11,12} B{ 0,2,4,.....,16} C{1,3,5,7,....,15} D{0,3,6,9,12,15} E{0,1,4,9,16,25,36,}
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Dau coroana!