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Math Forum - Math Challenge Problems

Math Challenge Problem Forum: For challenging math problems (that you can solve yourself)

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    April 15th 2014, 05:32 PM Go to last post
  1.   Discussions  
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    May 12th 2009, 02:35 AM Go to last post
  1. proof of -1 = +1

    mnova
    2 Pages
    1 2
    proof
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    May 7th 2009, 01:40 PM Go to last post
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    o_O
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    Moo
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