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- September 14th 2008, 07:34 AM #1

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## set question

A,B,C are sets with A union B = B intersection C. The question asks what do these operations imply about A and C. I let x be an element satisfying the equation and found that any element in A must be in B and any element in B must be in C. Does this make sense and is there anything else I can say about A and C?

- September 14th 2008, 07:42 AM #2

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- September 14th 2008, 07:44 AM #3

- September 14th 2008, 07:45 AM #4

- September 14th 2008, 09:29 AM #5

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- September 14th 2008, 09:39 AM #6

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- September 14th 2008, 11:33 AM #7