Posted by **Meg** on Sunday, November 22, 2009 at 10:19pm.

A is the set of all even natural numbers, and B is the set of all odd natural numbers. Describe a universal set for A and B. Also, with respect to this universal set, give a relationship between A and B.

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**Reiny**, Sunday, November 22, 2009 at 10:55pm
Now, what happens when I take all the even natural numbers, such as 2,4,6,8,...

and combine them with the set of all odd natural numbers, which would be 1,3,5,7,... ?

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**Meg**, Sunday, November 22, 2009 at 11:38pm
I don't know they would make up all the numbers

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