Question

São dados sobre conjuntos
A={x E z/-4<x≤2}
B={x E n/x≤3}
C={x E z/-2<x<5}
D={x E z/3≤ x ≤ 8}
 
A) AUB
B) A∩B
C) AUD
D) A∩D
E) AUBUD​

Answer 1

A={-3,-2,-1,0,1,2}

B={0,1,2,3}

C={-1,0,1,2,3,4}

D={3,4,5,6,7,8}

a) A U B = {-3,-2,-1,0,1,2,3}

b) = {0,1,2}

c) = {-3,-2,-1,0,1,2,3,4,5,6,7,8}

d) = {}

e) = {-3,-2,-1,0,1,2,3} U D

{-3,-2,-1,0,1,2,3,4,5,6,7,8}