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phi Group TitleBest ResponseYou've already chosen the best response.0
this (almost) looks like u^1 du
 2 years ago

henpen Group TitleBest ResponseYou've already chosen the best response.0
This smells of parts, but I'm having trouble with \[\int\limits \frac{1}{x^2+1}dx\]
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
that is arctangent
 2 years ago

henpen Group TitleBest ResponseYou've already chosen the best response.0
Although that might not help
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
can you enlighten us with the problem?
 2 years ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Do a substitution \(u=x^2, du=2xdx\)
 2 years ago

henpen Group TitleBest ResponseYou've already chosen the best response.0
\[0.5 \ln(u+1)\]
 2 years ago

henpen Group TitleBest ResponseYou've already chosen the best response.0
@sirm3d It's halfway through the DE of my last question
 2 years ago

klimenkov Group TitleBest ResponseYou've already chosen the best response.1
Yes. Now make the inverse substitution.
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
post a link @henpen
 2 years ago

henpen Group TitleBest ResponseYou've already chosen the best response.0
http://openstudy.com/users/henpen#/updates/50968019e4b0d0275a3ce47b
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
hmm, can we try reduction of order with \[y=v(ix)\]
 2 years ago
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