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OCW Scholar - Single Variable Calculus 14 Online
OpenStudy (anonymous):

∫xdx/(x^4+4)=?

OpenStudy (anonymous):

solved,the answer is arctan((x^2)/2)/4

OpenStudy (anonymous):

\[-\frac{ \arctan(1-x) }{ 4 }-\frac{ \arctan(x+1) }{ 4 }\]

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