Differentiate $\displaystyle H(x)=\frac{e^{-x}}{x^2}$
Last edited by mr fantastic; Jun 9th 2010 at 07:30 PM. Reason: Re-titled.
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Originally Posted by Minino777 $\displaystyle H(x)=\frac{e^{-x}}{x^2}$ Have you tried anything? Write $\displaystyle H(x)=e^{-x}x^{-2}$ and use the product rule in conjunction with the chain rule.
Originally Posted by Minino777 Differentiate $\displaystyle H(x)=\frac{e^{-x}}{x^2}$ The quotient rule immediately comes to mind. Review it. Use it. If you need more help, please show all your work and say where you get stuck.
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