Question

Se A={ X ∈ R| 2_ < X ≤ 5} e B={X ∈ R| 3 ≤ X < 8} determine
A) A∪B

B) A∩B
C) a-b

Answer 1

elementos dos conjuntos A e B

A={2,3,4,5}

B={3,4,5,6,7}

Respostas

A) AUB={2,3,4,5,6,7}

B) {3,4,5}

C) A-B={2}