Integrand size = 39, antiderivative size = 16 \[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=e^{-\frac {1}{9+\frac {4 \log (x)}{3}}} x \]
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\[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=\int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{(27+4 \log (x))^2} \, dx \\ & = \int \left (e^{-\frac {3}{27+4 \log (x)}}+\frac {12 e^{-\frac {3}{27+4 \log (x)}}}{(27+4 \log (x))^2}\right ) \, dx \\ & = 12 \int \frac {e^{-\frac {3}{27+4 \log (x)}}}{(27+4 \log (x))^2} \, dx+\int e^{-\frac {3}{27+4 \log (x)}} \, dx \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.88 \[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=e^{-\frac {3}{27+4 \log (x)}} x \]
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Time = 0.20 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.88
method | result | size |
risch | \(x \,{\mathrm e}^{-\frac {3}{4 \ln \left (x \right )+27}}\) | \(14\) |
norman | \(\frac {\left (27 x +4 x \ln \left (x \right )\right ) {\mathrm e}^{-\frac {3}{4 \ln \left (x \right )+27}}}{4 \ln \left (x \right )+27}\) | \(32\) |
parallelrisch | \(\frac {\left (27648 x \ln \left (x \right )+186624 x \right ) {\mathrm e}^{-\frac {3}{4 \ln \left (x \right )+27}}}{27648 \ln \left (x \right )+186624}\) | \(33\) |
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Time = 0.25 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.81 \[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=x e^{\left (-\frac {3}{4 \, \log \left (x\right ) + 27}\right )} \]
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Time = 1.18 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.62 \[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=x e^{- \frac {3}{4 \log {\left (x \right )} + 27}} \]
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Time = 0.26 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.81 \[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=x e^{\left (-\frac {3}{4 \, \log \left (x\right ) + 27}\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 30 vs. \(2 (13) = 26\).
Time = 0.28 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.88 \[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=x^{\frac {247}{9 \, {\left (4 \, \log \left (x\right ) + 27\right )}}} e^{\left (\frac {4 \, \log \left (x\right )^{2}}{4 \, \log \left (x\right ) + 27} - \frac {1}{9}\right )} \]
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Timed out. \[ \int \frac {e^{-\frac {3}{27+4 \log (x)}} \left (741+216 \log (x)+16 \log ^2(x)\right )}{729+216 \log (x)+16 \log ^2(x)} \, dx=\int \frac {{\mathrm {e}}^{-\frac {3}{4\,\ln \left (x\right )+27}}\,\left (16\,{\ln \left (x\right )}^2+216\,\ln \left (x\right )+741\right )}{16\,{\ln \left (x\right )}^2+216\,\ln \left (x\right )+729} \,d x \]
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