LetU be the universal set, where:

U = {1,2,3,...,18,19,20}

Let setsAandBbe subsets ofU, where:

SetA={2,5,7,9,11,13,14,18,20}

SetB={1,6,11,15,16,18}

SetC={2,3,10,20}

LIST the elements in the setABC = {}

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

LIST the elements in the setABC

ABC= {}

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

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