December 2019 1 78 Report
13. Represente, na reta real, os intervalos: a) [ 2, 8]
b) { x ∈ ℝ/ 2 < x < 5}
c) ] – ∞, 2]
d) { x ∈ ℝ/ -2≤ x ≤ 2}
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