SOLUTION: Given U = {21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}, A = {21, 23, 25, 27, 29}, and B = {22, 25, 28, 29}. Find A′ U B′. I am so tired of this stuff I can not

Algebra ->  sets and operations -> SOLUTION: Given U = {21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}, A = {21, 23, 25, 27, 29}, and B = {22, 25, 28, 29}. Find A′ U B′. I am so tired of this stuff I can not      Log On


   

Question 202682: Given U = {21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}, A = {21, 23, 25, 27, 29}, and
B = {22, 25, 28, 29}. Find A′ U B′.

I am so tired of this stuff I can not get it for some reason this is my 3rd time trying to answer this so I am gonna need some help.. And if u can will you please explain it to me...
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
First, let's find the set A'. So form the set of elements that are in U but NOT in A:




Do the same for B'. List the elements in U but NOT in B:




Now to find , just combine the two sets A' and B' (and remove duplicate elements) to get