If U = {1,3,5,...), A = {1,3}, B = {5,7,...}, and C =
A = {1,3}
C = {}
U= {1,3,5,...}
B={5,7,...}
=
{}, match each set with its complement.
I I I
= {5,7,...} :: {1,3} = {1,3,5,7}
:: {1,3,5,...}
:: {1,3,5}