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Math Help - First-derivative

  1. #1
    Super Member dhiab's Avatar
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    Thumbs down First-derivative

    Stydy sign of derivative function :
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  2. #2
    Senior Member
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    Hello.

    Quote Originally Posted by dhiab View Post
    Stydy sign of derivative function :
    What exactly are you asking for? Just asking for the first derivative?


    Well [x]'=1

    [ln(|x|)]' = \frac 1 x

    [e^{-x}]' = - e^{-x}

    Thus

    f'(x) = 1 + \frac 1 x - e^{-x}

    Yours,
    Rapha
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  3. #3
    Super Member dhiab's Avatar
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    hello : Stydy sign now
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