Question

If W = {1, 2, 3, 4 …} and subset Z = {positive odd integers}, what is Z'?

{1, 2, 3, 4 …}

{ }

{5, 6, 7, 8 …}

{2, 4, 6, 8, …}

Answer 1

This is again the set complement. The complement of the positive odd integers with respect to the positive integers is the positive even integers. This is the last one.