Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}.Find A'	Answers:
A) {2,5} B) {3,4} C) {5,6} D) {7,8} E) {5,6,7,8,9}
U = {1, 2, 3, 4, 5, 6, 7, 8, 9}   A = {1, 2, 3, 4}   correct answer :A'= {5, 6, 7, 8, 9}   {5,6,7,8,9}
<result>E</result>
Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}.Find A'