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Integral e^(1/x)/(x(x+1)^2)?

  • Thread starter mishima
  • Start date
517
31
$$\int \frac {e^{1/x}} {x(x+1)^2} \, dx$$

I came across this indefinite integral when solving a second order differential equation using reduction of order. My CAS can solve it easy enough, but I was wondering what technique could be used to solve it by hand. I have tried some standard approaches without much luck. Thanks for any insights.
 

Math_QED

Science Advisor
Homework Helper
1,050
336
The first step is to substitute ##u = 1/x## and after that substitution integration by parts.

Here is a site where you can enter the integral and it will give you a worked-out solution: https://www.integral-calculator.com/
 
517
31
Thanks, I was making a mistake with integration by parts. Nifty site!
 

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