Question

Considerando que AUB=(1,2,3,4,5,6,7,8) AΩB=(4,5) e A-B=(1,2,3) determine o conjunto B

Answer 1

6,7,8 só tirar o A e o 4,5 

Answer 2

AUB = (1,2,3,4,5,6,7,8)

A∩B = (4,5)

A-B = (1,2,3)

B=(4,5,6,7,8)