Posted by Bradley on .
Hi, I needed help with this improper integral.
lower limit : 2
upper limit : infinity
integral of (lnx)/(x+1) dx
Thank You so much :D

Math 
Reiny,
I saw this question and have not been able to get a handle on it
we know that ln(x) has an expansion formula
http://upload.wikimedia.org/math/6/d/b/6dbf56b2e5f34d298c1e71ddd93b3448.png
but it only good for x1 < 1
so we could create a series of terms
= 1/(x+1) ( (x1)  (x1)^2 /2 + (x1)^3 / 3  .... )
but to integrate each term would be a mess
 even Wolfram, usually very dependable, could not handle it.
http://integrals.wolfram.com/index.jsp?expr=ln%28x%29%2F%28x%2B1%29&random=false