Could someone please work me out in these problem, I did a substitution on Ln(x) but ended up with (u^2+1)/(u+1)...
here is the question find the indefinite integral of ((ln x)^2+1)/(xln(x)+3)....
daym... I got the u^2-6u+10/u... but at that point I didn't know what to do.. so I tried to substitute other variables.. stupid me... Thank you very much...