If A = {2, 5} and B = {1, 2, 3, 4, 5}, find A ∪ B.

Enter answer using set notation where the elements are listed from least to greatest and no elements are repeated. If the answer is the empty set, enter "{}".

Question

If A = {2, 5} and B = {1, 2, 3, 4, 5}, find A ∪ B.

Enter answer using set notation where the elements are listed from least to greatest and no elements are repeated. If the answer is the empty set, enter "{}".

lynfran · Answer

the union shd be every element of the two sets

mackenzie2013 · Answer

So it wuold be 2 and 5?

lynfran · Answer

{1,2,3,4,5}

lynfran · Answer

{2,5} would be the intersection

mackenzie2013 · Answer

I dont understand any of this, and havent had much help. Arent they asking to just put them together from smallest to greatest? I dont see what theyre asking.

lynfran · Answer

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lynfran · Answer

set B is the larger circle while set A is an element of set B

lynfran · Answer

they are asking for the A U B which means the union of A and B. which is all the element of A and B

mackenzie2013 · Answer

and A U B would be {2,5} Right?

lynfran · Answer

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