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Math Help - is it possible to take this derivative?

  1. #1
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    is it possible to take this derivative?

    Is it possible to take this derivative:

    \frac{\mathrm{d} }{\mathrm{d}\frac{y}{x}}\frac{2\sqrt{x^2+y^2}}{i}

    If not, any tips on how I might reach my objective by another route?
    Last edited by rainer; December 4th 2009 at 03:47 PM. Reason: mistake in equation
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    Quote Originally Posted by rainer View Post
    Is it possible to take this derivative:

    \frac{\mathrm{d} }{\mathrm{d}\frac{y}{x}}\frac{2\sqrt{x^2+y^2}}{i}

    If not, any tips on how I might reach my objective by another route?
    Please post the original question.
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    It doesn't get any more original than this.
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