Let S = {1,2,3,...,18,19,20} be the universal set.

Let sets A and B be subsets of S, where:

Set `A = \{1,5,6,11,12,14,15,17,18,20}`

Set `B = \{1,2,3,5,9,10,11,12,15,16,17,18,20}`

LIST the elements in Set A and Set B: { }

LIST the elements in Set A or Set B: { }

Enter the elements as a list, separated by commas. If the result is the empty set, enter DNE

You may want to draw a Venn Diagram to help answer this question.