Integration by part Problem

• April 2nd 2013, 08:38 AM
mastermin346
Integration by part Problem
$\int \frac{1}{xln5x} dx$ .
• April 2nd 2013, 09:01 AM
hollywood
Re: Integration by part Problem
Substitute $y=\ln{5x}$ and you should get a very familiar integral.

- Hollywood
• April 2nd 2013, 09:01 AM
Plato
Re: Integration by part Problem
Quote:

Originally Posted by mastermin346
$\int \frac{1}{xln5x} dx$ .

You don't need parts!

What is the derivative of $5ln(ln(5x))~?$