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A tricky one

  1. Nov 30, 2005 #1
    How can we solve this without expanding?

    Attached Files:

  2. jcsd
  3. Nov 30, 2005 #2


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    Can you please stop posting these doc-documents and use the PF options?
    Last edited: Nov 30, 2005
  4. Nov 30, 2005 #3


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    As said before, please don't post in .doc format. If you insist in posting by attachment please refer to a guide I gave to you on your previous thread.

    Furthermore if you are doing to post in attachment please at least make it neat, you've written everything in Microsoft Equation Editor, which normally does not allow spaces.

    While I'm at it, I'm fairly sure your posts belong more in general maths than number theory.
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