Question

São dados os conjuntos:
A={x e Zl -4<x<2}  B={x e Nl x<3}
C={x e Zl -2<x<5} D={x e Zl 3<x<8}
Determine:
a)A U B
b)A n B
c)A U D
d)A n D
e)A U B U D
f)A n B n C
g)A n B n C n D
h)(A U D) n (B U C)
i)(A n D) U (B n C)

Answer 1

A U B=[-3,-2,-1,2,3]
A n B=[0,1]
A U D=[-3,-2,-1,0,1]
A n D=[  ]
A U B U D=[-3,-2,-1,2,3,4,5,6,7,]
A n B n C=[-1,0,1,2,3]
A n B n C n D=[-1,0,1,2,3,4]
[A U D] n [B U C]=[-3,-2,-1,0,1] n [-1,4]=[-1]
[A n D] U [B n C]=[  ] U [0,1]=[0,1]