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inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
set u=ln x then du/dx/u
 one year ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
you should be able to figure it out with usub
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
but then how can I use du? There is no place to put du
 one year ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
I may have overlooked this >.< gimme a minute getting some paper
 one year ago

Kanwar245 Group TitleBest ResponseYou've already chosen the best response.0
Integration by parts?
 one year ago

Xavier Group TitleBest ResponseYou've already chosen the best response.2
It can't be expressed in terms of other functions. That integral is the basis of the logarithmic integral function \[li(x)=\int_{0}^{x}\frac{dt}{ln(t)}\]
 one year ago

Kanwar245 Group TitleBest ResponseYou've already chosen the best response.0
u = 1/ln x, dv = 1
 one year ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
No, I'm correct.
 one year ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
u=lnx du=dx/u Int 1/u dx=int du
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Please explain more clear @inkyvoyd How to use usubstitution?
 one year ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
gimme a minute lemme use latex
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
well then i get u = u it dont do anything.
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
I think @Xavier is correct, it can't be expressed
 one year ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
yes, xavier is in fact correct (facepalm)
 one year ago

inkyvoyd Group TitleBest ResponseYou've already chosen the best response.1
http://www.wolframalpha.com/input/?i=integrate+1%2Fln+x
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Thank you, here's gif
 one year ago
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