1) Given the universal set

U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and sets A = {2, 3, 4, 6},
B = {5, 6, 7, 8, 10},
C = {6, 8, 10}, and D = {1, 2, 7, 9}, answering the following:

1- a) What is A ∪ C?
2- b) What is A ∩ D?
3- c) What is A'∩ (B ∪ C)?
4- d) What is A ∪ B ∪ C ∪ D?
5- e) What is (A ∩ B') ∪ (C ∩ D')?