Question

Sendo A = {1, 2, 3, 4, 5}, B = {3, 4, 5, 6, 7} e C = {5, 6, 7, 8, 9}, determine o conjunto (AUB)-C​

Answer 1

(A U B) = {1, 2, 3, 4, 5, 6, 7}

(A U B) - C = {1, 2, 3, 4}