Determine a∪b, quando: a) a= {x ∈ |r | -4< x ≤ 1} e b= {x ∈ |r | 2 ≤ x ≤3} b) a= {x ∈ |r
Determine a∪b, quando:
a) a= {x ∈ |r | -4< x ≤ 1} e b= {x ∈ |r | 2 ≤ x ≤3}
b) a= {x ∈ |r | 2< x < 5} e b= {x ∈ |r | 1< x < 4}
1 Resposta
A) A=(-3,-2,-1,0,1) B=(2,3)
AUB= (-3,-2,-1,0,1,2,3)
B) A=(3,4) B=(2,3)
AUB=(2,3,4)