Question

Sejam os conjuntos A ={x∈IR/0 ≤ x ≤ 3}, B ={x∈IR/x ≤ 3} e C ={x∈IR/−2 ≤ x ≤ 3}
O conjunto (B − A) ∩ C é igual a:
a) ∅
b) {x∈IR/x < 0}
c) {x∈IR/x >−2}
d) {x∈IR/−2 ≤ x < 0}
e) {x∈IR/−2 < x ≤ 3}

Answer 1

Resposta:

Explicação passo-a-passo:

A={0,1,2,3}

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

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

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

B-AinterseccaoC= {-2,-1}

Resposta d

{xeIR/-2 < x<0}