SOLUTION: Given the following determine the set (A' U B')∩(A U B)' U = {1,2,3,4,5,6,7,8} A ={1,3,6,7,8} B = {1,2,5,6} (A' U B')∩ (A U B)'= Can any one help?

Algebra ->  Finite-and-infinite-sets -> SOLUTION: Given the following determine the set (A' U B')∩(A U B)' U = {1,2,3,4,5,6,7,8} A ={1,3,6,7,8} B = {1,2,5,6} (A' U B')∩ (A U B)'= Can any one help?       Log On


   



Question 764913: Given the following determine the set (A' U B')∩(A U B)'
U = {1,2,3,4,5,6,7,8}
A ={1,3,6,7,8}
B = {1,2,5,6}
(A' U B')∩ (A U B)'=
Can any one help?

Answer by ramkikk66(644) About Me  (Show Source):
You can put this solution on YOUR website!


U = {1,2,3,4,5,6,7,8}
A ={1,3,6,7,8}
B = {1,2,5,6} 
(A' U B')∩ (A U B)'= 

A' = set of all elements in U but not in A = {2,4,5}
B' = set of all elements in U but not in B = {3,4,7,8}
A' U B' = {2,3,4,5,7,8}  ---> (1)

A U B = {1,2,3,5,6,7,8}
(A U B)' = set of all elements in U but not in (A U B) = {4}  --- (2)

So (A' U B')∩ (A U B)'=  {4} which is the only common element between the sets 
as seen from (1) and (2).