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Thread: Having a problem with a negative exponet problem

  1. September 1st 2007, 08:40 AM #1
    swatpup32
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    Having a problem with a negative exponet problem

    Where am I going wrong it should equal 2r^3/3
    TIA
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  2. September 1st 2007, 09:11 AM #2
    red_dog
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    You are wrong at the first step.
    4r^{-3}=\frac{4}{r^3} and 6r^{-6}=\frac{6}{r^6}
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  3. September 1st 2007, 09:17 AM #3
    swatpup32
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    thanks.
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