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Math Help - Calculus w/ Paramatrized Curves

  1. #1
    Senior Member mollymcf2009's Avatar
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    Calculus w/ Paramatrized Curves

    Find \frac{dy}{dx}

    x = \frac{2}{t}

    y = \sqrt{t}e^{-t}


    x' = 2ln(t)

    y' = \frac{1-2t}{2\sqrt{t}e^t}


    \frac{dy}{dx} = \frac{1-2t}{4\sqrt{t}ln(t)e^{2t}}

    This is wrong, can someone tell me where I am wrong?

    Thanks!
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  2. #2
    Super Member Showcase_22's Avatar
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    You've integrated x instead of differentiating it.

    Have you also done the same for y?
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