Respostas

2013-05-12T23:53:37-03:00

a) {x ∈ R | -5 ≤ x < 2}

 

b) {x ∈ R | -10 < x < 10}

 

c) {x ∈ R | -√3 ≤ x ≤ √3}

 

d) {x ∈ R | x ≤ 1}

3 3 3