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appleduardo Group TitleBest ResponseYou've already chosen the best response.0
so far I have:\[\ln(x ^{2}+1)x\int\limits_{}^{}x*\frac{ 2x }{ x ^{2}+1 } dx\]
 one year ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Long division for the int. by parts?
 one year ago

appleduardo Group TitleBest ResponseYou've already chosen the best response.0
uhmm could that work?
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.3
my guess is parts
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.3
oh nvm you have that already
 one year ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
\[\ln(x ^{2}+1)x\int\limits\limits_{}^{}2\frac{2}{x^2+1} dx \]
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.3
\[\frac{x^2}{x^2+1}=\frac{x^2+1}{x^2+1}\frac{1}{x^2+1}=1\frac{1}{x^2+1}\]
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.3
first integral is obvious, second part is the derivative of arctangent
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.3
i ignored the 2, @.Sam. has it
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.3
you could divide too, but i find that gimmick easier than long division
 one year ago

appleduardo Group TitleBest ResponseYou've already chosen the best response.0
thank you! I'll try and post it when im done :P
 one year ago
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