Question

1- Sendo A = {2, 4, 6, 8}, B = {x ∈ Ν / x ≤ 7} e C = {5, 7, 9}, obtenha:

a) A U B =





b) A U C =





c) A U B U C =





d) A ∩ B =

​

Answer 1

B = {0,1,2,3,4,5,6,7}

a) {0,1,2,3,4,5,6,7,8}
b) {2,4,5,6,7,8,9}
C) {1,2,3,4,5,6,7,8,9}
d) {2,4,6}