Integrand size = 80, antiderivative size = 25 \[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=3+x-\frac {1+\log (5)}{x}+\frac {x}{\log \left (\frac {3 (13+x)}{x}\right )} \]
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\[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=\int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{x^2 (13+x) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx \\ & = \int \left (\frac {1+x^2+\log (5)}{x^2}+\frac {13}{(13+x) \log ^2\left (3+\frac {39}{x}\right )}+\frac {1}{\log \left (3+\frac {39}{x}\right )}\right ) \, dx \\ & = 13 \int \frac {1}{(13+x) \log ^2\left (3+\frac {39}{x}\right )} \, dx+\int \frac {1+x^2+\log (5)}{x^2} \, dx+\int \frac {1}{\log \left (3+\frac {39}{x}\right )} \, dx \\ & = 13 \int \frac {1}{(13+x) \log ^2\left (3+\frac {39}{x}\right )} \, dx+\int \left (1+\frac {1+\log (5)}{x^2}\right ) \, dx+\int \frac {1}{\log \left (3+\frac {39}{x}\right )} \, dx \\ & = x-\frac {1+\log (5)}{x}+13 \int \frac {1}{(13+x) \log ^2\left (3+\frac {39}{x}\right )} \, dx+\int \frac {1}{\log \left (3+\frac {39}{x}\right )} \, dx \\ \end{align*}
Time = 0.11 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.96 \[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=x+\frac {-1-\log (5)}{x}+\frac {x}{\log \left (3+\frac {39}{x}\right )} \]
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Time = 16.17 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.20
method | result | size |
risch | \(-\frac {-x^{2}+\ln \left (5\right )+1}{x}+\frac {x}{\ln \left (\frac {3 x +39}{x}\right )}\) | \(30\) |
norman | \(\frac {x^{2}+x^{2} \ln \left (\frac {3 x +39}{x}\right )+\left (-\ln \left (5\right )-1\right ) \ln \left (\frac {3 x +39}{x}\right )}{x \ln \left (\frac {3 x +39}{x}\right )}\) | \(52\) |
derivativedivides | \(-\frac {\left (-1+\left (-\frac {170}{169}-\frac {\ln \left (5\right )}{169}\right ) \ln \left (3+\frac {39}{x}\right )+\left (\frac {\ln \left (5\right )}{1521}+\frac {1}{1521}\right ) \ln \left (3+\frac {39}{x}\right ) \left (3+\frac {39}{x}\right )^{2}\right ) x}{\ln \left (3+\frac {39}{x}\right )}\) | \(55\) |
default | \(-\frac {\left (-1+\left (-\frac {170}{169}-\frac {\ln \left (5\right )}{169}\right ) \ln \left (3+\frac {39}{x}\right )+\left (\frac {\ln \left (5\right )}{1521}+\frac {1}{1521}\right ) \ln \left (3+\frac {39}{x}\right ) \left (3+\frac {39}{x}\right )^{2}\right ) x}{\ln \left (3+\frac {39}{x}\right )}\) | \(55\) |
parallelrisch | \(-\frac {-x^{2} \ln \left (\frac {3 x +39}{x}\right )+\ln \left (\frac {3 x +39}{x}\right ) \ln \left (5\right )-x^{2}+26 x \ln \left (\frac {3 x +39}{x}\right )+\ln \left (\frac {3 x +39}{x}\right )}{x \ln \left (\frac {3 x +39}{x}\right )}\) | \(70\) |
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Time = 0.31 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.52 \[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=\frac {x^{2} + {\left (x^{2} - \log \left (5\right ) - 1\right )} \log \left (\frac {3 \, {\left (x + 13\right )}}{x}\right )}{x \log \left (\frac {3 \, {\left (x + 13\right )}}{x}\right )} \]
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Time = 0.08 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.76 \[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=x + \frac {x}{\log {\left (\frac {3 x + 39}{x} \right )}} + \frac {- \log {\left (5 \right )} - 1}{x} \]
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Leaf count of result is larger than twice the leaf count of optimal. 224 vs. \(2 (25) = 50\).
Time = 0.37 (sec) , antiderivative size = 224, normalized size of antiderivative = 8.96 \[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=\frac {2}{13} \, {\left ({\left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right )} \log \left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right ) - \log \left (\frac {39}{x} + 3\right ) \log \left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right ) - \log \left (x + 13\right ) + \log \left (x\right )\right )} \log \left (5\right ) - \frac {1}{13} \, {\left (\frac {13}{x} - \log \left (x + 13\right ) + \log \left (x\right )\right )} \log \left (5\right ) + \frac {\log \left (5\right ) \log \left (\frac {39}{x} + 3\right )^{2}}{13 \, {\left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right )}} + \frac {2}{13} \, {\left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right )} \log \left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right ) - \frac {2}{13} \, \log \left (\frac {39}{x} + 3\right ) \log \left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right ) + \frac {\log \left (\frac {39}{x} + 3\right )^{2}}{13 \, {\left (\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )\right )}} + \frac {x {\left (\log \left (3\right ) + 1\right )} + x \log \left (x + 13\right ) - x \log \left (x\right )}{\log \left (3\right ) + \log \left (x + 13\right ) - \log \left (x\right )} - \frac {1}{x} - \frac {1}{13} \, \log \left (x + 13\right ) + \frac {1}{13} \, \log \left (x\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 58 vs. \(2 (25) = 50\).
Time = 0.32 (sec) , antiderivative size = 58, normalized size of antiderivative = 2.32 \[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=-\frac {{\left (x + 13\right )} {\left (\log \left (5\right ) + 1\right )}}{13 \, x} + \frac {13}{\frac {{\left (x + 13\right )} \log \left (\frac {3 \, {\left (x + 13\right )}}{x}\right )}{x} - \log \left (\frac {3 \, {\left (x + 13\right )}}{x}\right )} + \frac {13}{\frac {x + 13}{x} - 1} \]
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Time = 13.80 (sec) , antiderivative size = 111, normalized size of antiderivative = 4.44 \[ \int \frac {13 x^2+\left (13 x^2+x^3\right ) \log \left (\frac {39+3 x}{x}\right )+\left (13+x+13 x^2+x^3+(13+x) \log (5)\right ) \log ^2\left (\frac {39+3 x}{x}\right )}{\left (13 x^2+x^3\right ) \log ^2\left (\frac {39+3 x}{x}\right )} \, dx=\frac {x^5+\left (\frac {2\,\ln \left (5\right )}{13}+\frac {340}{13}\right )\,x^4+\left (\ln \left (125\right )+172\right )\,x^3+\left (-169\,\ln \left (5\right )-169\right )\,x}{x^4+26\,x^3+169\,x^2}+\frac {x^5+26\,x^4+169\,x^3}{169\,x^2\,\ln \left (\frac {3\,x+39}{x}\right )+26\,x^3\,\ln \left (\frac {3\,x+39}{x}\right )+x^4\,\ln \left (\frac {3\,x+39}{x}\right )} \]
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