SOLUTION: If set A= {3,4,5,6,7} and set B= {1,2,3,4}: (a) What is AUB? (b) What is A(upside down U)B? Someone please help, I'm so confused. Thanks

Question 565199: If set A= {3,4,5,6,7} and set B= {1,2,3,4}: (a) What is AUB? (b) What is A(upside down U)B? Someone please help, I'm so confused.
Thanks
Answer by KMST(5396) (Show Source): You can put this solution on YOUR website!
The U stands for union, meaning a set that has all the elements of both united sets.
AUB={1,2,3,4,5,6,7}
The upside down U means intersection, meaning the set of elements common to both sets. The intersection of A and B is {3,4}.
The red circle represents set A. The blue circle represents set B.
RELATED QUESTIONS
Please help me. This is a different question than previously posted. Thank you so much... (answered by jim_thompson5910,solver91311)

Given A = {1, 2, 3, 4}, B = {3, 4, 5, 6,}, and C = {4, 6, 7}. Evaluate each set Need to... (answered by stanbon)

I am totally lost in this. I have no idea what these symbols even mean. I am getting know (answered by stanbon)

I am having some problems understanding this .. this is all new could i get someone to... (answered by jim_thompson5910,MathLover1)

Please help me with these. I have tried, but I cannot get the answer. I know that you... (answered by solver91311)

Please help me with these. I have tried, but I cannot get the answer. I know that you... (answered by stanbon)

Please help me with the following question. Ireally need the help my work is due today... (answered by jim_thompson5910)

is set A has 3 elements and set B has 4 elements: a. what is the greatest number of... (answered by stanbon)

Can someone help me with the question below, I am lost. Thank you. Given A = {2, 4,... (answered by Edwin McCravy)