SOLUTION: Given A = { 2, 4, 8 , 9 }, B = { 5. 8. 9 }, C = { 8, 11, 12, 17 } AND Universal Set U = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17} find a) A

Question 169451: Given A = { 2, 4, 8 , 9 }, B = { 5. 8. 9 }, C = { 8, 11, 12, 17 } AND Universal Set U = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17}
find
a) A U C
b) the intersection of A and B
c) the complement
d) B U A U C

Answer by chiefman(11) (Show Source): You can put this solution on YOUR website!
(a)A U C is
{2,4,5,8,9}ie its the set of all elements that are in A and B
(b)Aintersection B becomes
{8,9} ie its the set of all alike elements in Aand B
(c)your question seems to be incomplete since there should be a set of elements say A or B that you should complement with U.
Assuming the question was A'(A complement)then we would have;
{1,3,5,6,7,10,11,12,13,14,15,16,17}ie all elements in U that aren't in A
(d)B U A U C
first find B U A which is {2,4,5,8,9}
then(B U A) U C which becomes {2,4,5,8,9,11,12,17}and hence the answer.

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