Question

Dados os subconjuntos de IR: A = {x ∈ IR / -2 ≤ x < 3}, B = {x ∈ IR / 1 ≤ x < 4} e C = {x ∈ IR / x < 0}, determine: a) A ∪ B

Answer 1

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