# Math Help - differentiate e^(-x)/x^2

1. ## differentiate e^(-x)/x^2

Differentiate $H(x)=\frac{e^{-x}}{x^2}$

2. Originally Posted by Minino777
$H(x)=\frac{e^{-x}}{x^2}$
Have you tried anything? Write $H(x)=e^{-x}x^{-2}$ and use the product rule in conjunction with the chain rule.

3. Originally Posted by Minino777
Differentiate $H(x)=\frac{e^{-x}}{x^2}$
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.