what would be a complement of the subset {3,6,7,8,11}?

Answer 1

the complement of a set A are those elements not in A,
so we need more information such as what set your subset belongs to.

Answer 2

ohh well the whole set is {1,2,3,4,5,6,7,8,9,10,11,12}

Answer 3

So it is everything in that whole set EXCEPT 3,6,7,8,11

Answer 4

oh okay. thanks so much. this site is so helpful. :D