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Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits \frac{ lnx }{ x }\]
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Whos feelin brave? :D
 2 years ago

TuringTest Group TitleBest ResponseYou've already chosen the best response.0
I'm thinking by parts...
 2 years ago

Siddharth18 Group TitleBest ResponseYou've already chosen the best response.0
do it by substitution, let lnx= u
 2 years ago

TuringTest Group TitleBest ResponseYou've already chosen the best response.0
haha, oh yeah, I overthought it :P
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Can U be lnx ? It's above the line
 2 years ago

surdawi Group TitleBest ResponseYou've already chosen the best response.0
dw:1353166961045:dw
 2 years ago

Siddharth18 Group TitleBest ResponseYou've already chosen the best response.0
dw:1353035523772:dw
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Put ln(x) = u So: \(\frac{1}{x} \cdot dx =du\)
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Thank you guys
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Just try and if you face any problem, then do ask us...
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Wait, can you expand on that for me? I have \[dx = \frac{ du }{ 1/x }\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Are you converting a simple solution to hard one??
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Looks like it xD
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
dw:1353167337486:dw
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Sorry, my handwriting is not too good..
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Is this a direct manipulation or a substitution?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Is this not Substitution ?? We are substituting u in place of x..
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Ah, ok, so lnx. Differentiation of ln = 1 over So 1/x right?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
\[\frac{d}{dx}\ln(x) = \frac{1}{x}\]
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
So, let me just clarify. lnx / x = 1/x?
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Where does the x under the line go?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
See : \[\ln(x) = u\] Right ??
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Now take derivative both the sides and tell what did you get??
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Next, i've been taught to do du/dx
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Write them properly.. with LHS and RHS..
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Little lost here, sorry :(
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
1/x . dx = du
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Do you know how it came??
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
Yes i get this.
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
What is the next step?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.2
Just use this to substitute these values in your question..
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
I think the way i've been taught is conflicting... I usually write dx = du / 1/x
 2 years ago

Asylum15 Group TitleBest ResponseYou've already chosen the best response.0
If substituting
 2 years ago
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