given :
A={all even integers from 2 to 20,incusive}
B={10,12,14,16,18}'what is the compliment of set B within the universe of set A?
1){4,6,8}
2){2,4,6,8}
3){4,6,8,20}
4){2,4,6,8,20}
2,4,6,8 plus 20
plus
10,12,14,16,18,
is the whole set
so
3)