KristiM KristiM
  • 26-04-2015
  • Mathematics
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What is the integral of (2x^2+4)/(x^3+4x)

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222916
222916 222916
  • 26-04-2015
integral (2x^2+4)/(x^3+4x) dx =
integral (3x^2+4)/(x^3+4x) dx - integral (x^2)/(x^3+4x) dx =
integral d(x^3+4x)/(x^3+4x) -1/2*integral d(x^2+4)/(x^2+4)  =

ln|x^3+4x| -1/2*ln|x^2+4| + C =

ln|x*sqrt(x^2+4)| + C


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