Inactive Tutor answered 10/20/15
Tutor
New to Wyzant
What do you mean by the N in X' N Y'?
X' = {b, d, f} The complement of X: all the elements in the universe U that are not in X.
Y' = {d, e, f, g} The complement of Y: all the elements in the universe U that are not in Y.
X' union Y' = {b, d, e, f, g} All the elements that exist in either X' or Y' (or both)
X' intersect Y' = {d, f} All the elements that only exist in both X' and Y'