# Math-- Sets

by Victoria Esslinger
(Gurley, Al. US)

I am suppose to determine this set: ( A U B) ¿ (A U B)'.... I am confused, because all that I have read in my text book, it mentions that I need numbers to solve.

### Comments for Math-- Sets

 Jun 18, 2011 Union of Sets by: Staff The question: by Victoria Esslinger (Gurley, Al. US) I am suppose to determine this set: ( A U B) ¿ (A U B)'.... I am confused, because all that I have read in my text book, it mentions that I need numbers to solve. The answer: As you can see, not all of your notation is displayed properly. I’m not quite sure what you are asking. The “∪”symbol stands for the union of two sets. It simply means all of the elements of both sets are combined. For example, consider the following sets: A = {1, 2, 8, 17} B = {tree, flower, honeybee, cloud} A ∪ B = {1, 2, 8, 17} ∪ {tree, flower, honeybee, cloud} = {1, 2, 8, 17, tree, flower, honeybee, cloud} Thanks for writing. Staff www.solving-math-problems.com

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