Y' is all the letters except those in Y, so
X∩Y' = {A,I,O,U)
X∩Y = {E}
and why does Y have D twice?
Given that E=(All the letter of the alphabet)
X=(A,E,I,O,U)
Y=(E,D,C,D,F,H)
Find
XnY' and (XnY)
1 answer