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Math Help - Derivative

  1. #1
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    Derivative

    can anyone help me with this Derivatibe y=(x^n)/(n!)
    from my high school i learned you use log or ln to bring the n down...but in this course they hasnt taught this yet...they only taught simple derivatives...and for n! i have no idea wht is its derivative:S
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  2. #2
    Master Of Puppets
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    Because \displaystyle n! is constant then \displaystyle y=\frac{x^n}{n!}\implies \frac{dy}{dx} = \frac{nx^{n-1}}{n!}=\frac{x^{n-1}}{(n-1)!}
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