Adrianaulinicask Adrianaulinicask Matematică a fost răspuns a={1,2,3,4,5}b={1,3}c={5,6,7}Aub,Auc,Buc,Anc,Anb,Bnc,A-b,A-C,C-aB-c,C-b,Aubuc,Anbnc