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Can someone give me an example of these sets to help me understand it better?

  1. Feb 7, 2010 #1
    Can someone provide me an example of three sets of integers A, B and C such that A[tex]\cup[/tex]B=A[tex]\cup[/tex]C, but B≠C. And also, A[tex]\cap[/tex]B=A[tex]\cap[/tex]C, but B≠C.

    Thanks alot :)
  2. jcsd
  3. Feb 7, 2010 #2


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    Case 1: A={1,2}, B={1}, C={2}.
    Case 2: A={1}, B={1,2}, C={1}
  4. Feb 7, 2010 #3
    Mathman, can you please explain to me how those numbers apply to the statements ?
  5. Feb 8, 2010 #4


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    Use them to find the unions and intersections around which your first post centered.
  6. Feb 8, 2010 #5


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    Do you a problem with the notation? Specifically: A = {1,2} means A is a set with elements 1 and 2. I hope this clarifies it.
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