Question

H E L P !

Given that the Universal set is numbers 1 through 20, write the complement of the set A.

Set A : {1, 3, 7, 12, 14, 17, 19, 20}

Answer 1

A' : {2, 4, 5, 6, 8, 9, 10, 11, 13, 15, 16, 18}