Question

va rog ajutatima.....

Answer 1

1)fals2)Adevarat                                                                                                    2)A=(7,9)     B=(1 2 3 4 5)        C=(1 3 5 6 7)       D=(x|eintorsN*|xmai mare 6)          G=(x|e intors N |7≤ x ≤ 9)           a)D=(1 2 3 4 5)              G=(7 8 9 )      b)B=D         ACG        C)BUC=1 2 3 4 5 6 7          A∩C(7)         B∩G =cu 0taet        d)qAU(b u intors C)=(135)         e)numar impar numar cu o cifra numarN*            A)  c)AUB= ∅   b)card A=2         card B=4            elevi muzica 3elevi teatru 6 elevi ambele 10 elevi