Question

6) Dados os conjuntos A = ) { x R / -2 ≤ x ≤ 4 } e B = ) { x R / 1 < x ≤ 9 }, determine A U B, A ∩ B, A – B e B – A. A _________________________________________________ B _________________________________________________ A U B _________________________________________________ A ∩ B _________________________________________________

Answer 1

Resposta:

A U B = [-2,9]

A ∩ B = ]1,4]

A – B = ∅

B – A = ]4,9]

Explicação passo-a-passo:

A = { x R / -2 ≤ x ≤ 4 }

A = [-2,4]

B = { x R / 1 < x ≤ 9 }

B = ]1,9]

A U B = [-2,9]

A ∩ B = ]1,4]

A – B = ∅

B – A = ]4,9]