Question

são dados os conjuntos:
A= { ×∈ N /× é ímpar}
B= {× ∈ Z/-3 ≤ × < 4 }
C= {× ∈ Z/ ×< 6 }

Calcule:
a) A=
b) B=
c) C=
d) ( A∩B) ∪ (B∩C)=
e) (A∩C) ∪ B =

Answer 1

a) A= { ×∈ N /× é ímpar}

A={1,3,5,7...}

b)

B= {× ∈ Z/-3 ≤ × < 4 }

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

c) C= {× ∈ Z/ ×< 6 }

C= {5,4,3,2,1,0,-1,-2,-3....}

d) (A∩B)={1,3}

(B∩C)={-3,-2,-1,0,1,2,3}

(A∩B)∪(B∩C)={-3,-2,-1,0,1,2,3}=B

e) (A∩C) ={1,3,5}

(A∩C)∪B ={-3,-2,-1,0,1,2,3,5}