# Math Help - Intergration homework

1. ## Intergration homework

$\int \frac {1} {xlnx} dx$

I tried doing it with substitution, parts, but neither would work.

$\int \frac {1} {xlnx} dx$

I tried doing it with substitution, parts, but neither would work.
Substitute lnx =t.
You you will get the answer lnt + c which in equivalent to ln(lnx) + c.

3. Ha, I was thinking about doing that, but I was thinking too hard. I keep thinking I could not seperate $\frac {1}{xlnx}$ into $\frac {1}{x}$ and $\frac {1}{lnx}$