Question

Ex. 15,1,2,3.
Fără explicații,vă rog repede.

Answer 1

1) A U B = 0,1,2,3,4,5,6,7,8,9
A ∧ B = 2,4
2) a) AUB=5,10,11,12,13,15,20
BUC=2,4,5,6,8,10,15,20
CUA=2,4,6,8,10,11,12,13
b)A∧B=10
B∧C=10
C∧A=10
c)AU(B∧C)=5,10,11,12,13,15,20
A∧(BUC)=10
A∧B∧C=10

3)CUD=-5,0,1,3
C∧D=0,3
C\D=-5
D\C=1