Question

Given U = {15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25}, A = {16, 18, 20, 22}, and
B = {17, 19, 20, 23, 24}.

Find A′ ∩ B′. Show work, finding A’, then B’ then find their intersection.

Answer 1

A' = SET OF ELEMENTS in U but not in A
B' = .. .. .. .. .. .. .. .. . ..... .. B

A′ ∩ B′ = set of elements common to both

Answer 2

e, g A' = {15,17,19,21,23.24,25}

Answer 3

what is B ?