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

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

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

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

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

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

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

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

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

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

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

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

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