SOLUTION: Let U = {0,1, 2, 3, 4, 5, 6, 7} A = {2, 6, 7} B = {2, 3, 5, 7}, and C = {0, 2, 6}. Find A ∪ B' im lost can someone help?

Algebra ->  Subset -> SOLUTION: Let U = {0,1, 2, 3, 4, 5, 6, 7} A = {2, 6, 7} B = {2, 3, 5, 7}, and C = {0, 2, 6}. Find A ∪ B' im lost can someone help?      Log On


   

Question 1187132: Let U = {0,1, 2, 3, 4, 5, 6, 7}
A = {2, 6, 7}
B = {2, 3, 5, 7}, and C = {0, 2, 6}.
Find A ∪ B'
im lost can someone help?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

Let U = {0,1, 2, 3, 4, 5, 6, 7}
A = {2, 6, 7}
B = {2, 3, 5, 7}, and C = {0, 2, 6}.

Find A ∪ B'
first find B'
B' is the absolute complement of B, and it is the set of elements in U that are not in B
B' ={0,1,4,6 }
then A ∪ B'= {2,6,7} ∪ {0,1,4,6 }= {0,1,2,4,6,7 }