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lgbasallote Group Title

LGBARIDDLE Let A, B and C be sets. Thus, \(A - (B \cap C) = ?\)

  • one year ago
  • one year ago

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  1. rajathsbhat Group Title
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    huh? Is the riddle complete?

    • one year ago
  2. lgbasallote Group Title
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    indeed

    • one year ago
  3. UnkleRhaukus Group Title
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    ?

    • one year ago
  4. rajathsbhat Group Title
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    |dw:1351174228233:dw|Soo that's \(A - (A \cap B \cap C)\) right? :\

    • one year ago
  5. lgbasallote Group Title
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    hmm... i don't think so...is it?

    • one year ago
  6. lgbasallote Group Title
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    how can \[A - (B \cap C) = A - (A \cap B \cap C)\] doesn't sound right....

    • one year ago
  7. rajathsbhat Group Title
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    A part of \(B \cap C\) is not in A. So I don't know if that's right. I'm not even sure if the question even has an answer...

    • one year ago
  8. lgbasallote Group Title
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    oh it does

    • one year ago
  9. lgbasallote Group Title
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    and it involves a lot of thinking and set theory

    • one year ago
  10. rajathsbhat Group Title
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    o.o i see..

    • one year ago
  11. UnkleRhaukus Group Title
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    hint?

    • one year ago
  12. lgbasallote Group Title
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    set difference

    • one year ago
  13. rajathsbhat Group Title
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    wow there aren't too many details & i'm just thinking about all the possibilities... :/|dw:1351175508673:dw||dw:1351175580930:dw| And it goes on & on & on. The answer can be anything....can't it?

    • one year ago
  14. lgbasallote Group Title
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    not really...no

    • one year ago
  15. lgbasallote Group Title
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    i don't even know what your drawings mean....

    • one year ago
  16. rajathsbhat Group Title
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    They are Venn diagrams...the first one showing B as a subset of A & C only sharing a small part with B and A (B intersection C). The second one is one example(possibility) where B & C are subsets of A....

    • one year ago
  17. lgbasallote Group Title
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    whoever said anything about subsets?

    • one year ago
  18. rajathsbhat Group Title
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    That's what I'm trying to say. you're question doesn't say anything about what kind of sets A B & C are..so I have to consider all thhe possibilities.

    • one year ago
  19. rajathsbhat Group Title
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    *your

    • one year ago
  20. lgbasallote Group Title
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    not really...note that i said sets

    • one year ago
  21. lgbasallote Group Title
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    i never said anything about subsets

    • one year ago
  22. lgbasallote Group Title
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    so you can't assume

    • one year ago
  23. rajathsbhat Group Title
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    \(-_-)/ i give up.

    • one year ago
  24. lgbasallote Group Title
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    you actually just use the formula for set difference \[A - B \implies A \cap B'\]

    • one year ago
  25. rajathsbhat Group Title
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    So it's a null set?

    • one year ago
  26. rajathsbhat Group Title
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    I'm sorry I don't know :\

    • one year ago
  27. UnkleRhaukus Group Title
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    \[A \cap (B \cap C)' \]

    • one year ago
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