Represente na reta real os seguintes intervalos:
a) {x ε R / -3 < x ≤ 8}
b) {x ε R / -2 ≤ x < 6}
c) {x ε R / x < 7}
d) {x ε R / 5 ≤ x ≤ 10}
e) {x ε R / -2 < x ≤ 0}
f) {x ε R / 0 ≤ x < 6}
g) {x ε R / x ≥ −5}
h) {x ε R / 15 < x < 19}
i) {x ε R / 13 ≤ x < 20}
Soluções para a tarefa
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Resposta:
a) {x ε R / -3 < x ≤ 8} = {-2,-1,0,1,2,3,4,5,6,7,8}
b) {x ε R / -2 ≤ x < 6} = {-2,-1,0,1,2,3,4,5}
c) {x ε R / x < 7} = {..., -2,-1,0,1,2,3,4,5,6}
d) {x ε R / 5 ≤ x ≤ 10} = {-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10}
e) {x ε R / -2 < x ≤ 0} = {-1,0}
f) {x ε R / 0 ≤ x < 6} = {0,1,2,3,4,5}
g) {x ε R / x ≥ −5} = {-5,-4,-3,-2,-1,0,1,2...}
h) {x ε R / 15 < x < 19} = {16, 17, 18}
i) {x ε R / 13 ≤ x < 20} = {13, 14, 15, 16, 17, 18, 19}
Espero ter ajudado. Bons estudos.
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