Question

Qual (is) dos conjuntos seguintes é (são) vazio (s), ou seja, é (são) dado (s) por uma proposição logicamente falsa?
a) {x / 0 . x = 0}
b) {x / 2x – 5 = 123}
c) { x Є N / x + 5 < 3}
d) { x é inteiro negativo/ x^2 = 25}
e) {x / x > 20/9 e x < 7/3}

Answer 1

Resposta:

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Explicação:

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