# Finding integral

1. May 17, 2012

### lasers

∫e^(1/x) / x^3 dx ?

This has to be simple it's an improper integral from -1 to 0
How to solve?

2. May 17, 2012

### arildno

Re: Integral of e^{1/x}dx

Use integration by parts.

3. May 17, 2012

### Bohrok

You might want to try the substitution u =1/x first, then parts.