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Math Help - Derivative

  1. #1
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    Derivative

    Hi

    Just wanted to see if anyone could tel me if i have found the derivative correctly

    F(x) = 15e^(-x)ln(x+1)

    F'(x) = -e^(-x)((15x+15)ln(x+1)-15) / (x+1)

    Is there any programs on the internet that you can download that calculate this out?
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  2. #2
    Like a stone-audioslave ADARSH's Avatar
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    Quote Originally Posted by kayne View Post
    Hi

    Just wanted to see if anyone could tel me if i have found the derivative correctly

    F(x) = 15e^(-x)ln(x+1)

    F'(x) = -e^(-x)((15x+15)ln(x+1)-15) / (x+1)

    Is there any programs on the internet that you can download that calculate this out?
    Somethings is wrong
     <br />
\frac{d(15e^{-x}ln(1+x))}{dx} <br /> <br />

     <br />
= -15e^{-x} ln(1+x) + \frac{15 e^{-x}}{1+x}<br />

    Once you will practise it you won't really need that
    Last edited by ADARSH; February 12th 2009 at 12:52 AM. Reason: typo
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  3. #3
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    Gee i am really out there in left field will go back and see where i went wrong. Thanks
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