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Thread: A nice math riddle, try to solve it.

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    Registered User Lior's Avatar
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    Jan 2000
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    A nice math riddle, try to solve it.

    Hello...
    Believe it or not, but it seems like I can prove you that 2=1.
    Look how:

    a=b /Multiply both sides by a
    a²=ab /Add to both sides (a²-2ab)
    a²+a²-2ab=ab+a²-2ab
    2a²-2ab=a²-ab
    2(a²-ab)=a²-ab
    2=1

    Of course there is a mistake here, find it.

    Good Luck!
    Last edited by Lior; Jun 11th, 2001 at 02:29 AM.

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