Integrand size = 33, antiderivative size = 21 \[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=\log (5)+\log \left (\frac {1}{-e^x-x+\log \left (\frac {103}{5}\right )+\log (x)}\right ) \]
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\[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=\int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (-1+\frac {1+x^2-x \left (1+\log \left (\frac {103}{5}\right )\right )-x \log (x)}{x \left (e^x+x-\log \left (\frac {103 x}{5}\right )\right )}\right ) \, dx \\ & = -x+\int \frac {1+x^2-x \left (1+\log \left (\frac {103}{5}\right )\right )-x \log (x)}{x \left (e^x+x-\log \left (\frac {103 x}{5}\right )\right )} \, dx \\ & = -x+\int \left (\frac {1}{x \left (e^x+x-\log \left (\frac {103 x}{5}\right )\right )}+\frac {x}{e^x+x-\log \left (\frac {103 x}{5}\right )}-\frac {1+\log \left (\frac {103}{5}\right )}{e^x+x-\log \left (\frac {103 x}{5}\right )}-\frac {\log (x)}{e^x+x-\log \left (\frac {103 x}{5}\right )}\right ) \, dx \\ & = -x+\left (-1-\log \left (\frac {103}{5}\right )\right ) \int \frac {1}{e^x+x-\log \left (\frac {103 x}{5}\right )} \, dx+\int \frac {1}{x \left (e^x+x-\log \left (\frac {103 x}{5}\right )\right )} \, dx+\int \frac {x}{e^x+x-\log \left (\frac {103 x}{5}\right )} \, dx-\int \frac {\log (x)}{e^x+x-\log \left (\frac {103 x}{5}\right )} \, dx \\ & = -x-5 \text {Subst}\left (\int \frac {\log (5 x)}{e^{5 x}+5 x-\log (103 x)} \, dx,x,\frac {x}{5}\right )-\left (5 \left (1+\log \left (\frac {103}{5}\right )\right )\right ) \text {Subst}\left (\int \frac {1}{e^{5 x}+5 x-\log (103 x)} \, dx,x,\frac {x}{5}\right )+\int \frac {1}{x \left (e^x+x-\log \left (\frac {103 x}{5}\right )\right )} \, dx+\int \frac {x}{e^x+x-\log \left (\frac {103 x}{5}\right )} \, dx \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.76 \[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=-\log \left (e^x+x-\log \left (\frac {103 x}{5}\right )\right ) \]
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Time = 0.81 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.76
method | result | size |
norman | \(-\ln \left (\ln \left (\frac {103}{5}\right )-{\mathrm e}^{x}-x +\ln \left (x \right )\right )\) | \(16\) |
parallelrisch | \(-\ln \left (-\ln \left (\frac {103}{5}\right )+{\mathrm e}^{x}+x -\ln \left (x \right )\right )\) | \(16\) |
risch | \(-\ln \left (\ln \left (x \right )-{\mathrm e}^{x}+\ln \left (103\right )-\ln \left (5\right )-x \right )\) | \(20\) |
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Time = 0.26 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.71 \[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=-\log \left (-x - e^{x} + \log \left (\frac {103}{5}\right ) + \log \left (x\right )\right ) \]
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Time = 0.11 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.81 \[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=- \log {\left (x + e^{x} - \log {\left (x \right )} - \log {\left (103 \right )} + \log {\left (5 \right )} \right )} \]
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Time = 0.30 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.81 \[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=-\log \left (x + e^{x} - \log \left (103\right ) + \log \left (5\right ) - \log \left (x\right )\right ) \]
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Time = 0.27 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.90 \[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=-\log \left (-x - e^{x} + \log \left (103\right ) - \log \left (5\right ) + \log \left (x\right )\right ) \]
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Time = 9.96 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.62 \[ \int \frac {-1+x+e^x x}{-e^x x-x^2+x \log \left (\frac {103}{5}\right )+x \log (x)} \, dx=-\ln \left (x-\ln \left (\frac {103\,x}{5}\right )+{\mathrm {e}}^x\right ) \]
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