Integrand size = 33, antiderivative size = 28 \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=-\log \left (\frac {e^{2 \left (x+e^3 x+\log \left (\frac {x}{1+e^x}\right )\right )}}{x}\right ) \]
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Time = 0.06 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.79, number of steps used = 9, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.212, Rules used = {6, 6874, 2320, 36, 29, 31, 45} \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=-2 e^3 x-2 x+2 \log \left (e^x+1\right )-\log (x) \]
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Rule 6
Rule 29
Rule 31
Rule 36
Rule 45
Rule 2320
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \frac {-1+\left (-2-2 e^3\right ) x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx \\ & = \int \left (-\frac {2}{1+e^x}+\frac {-1-2 e^3 x}{x}\right ) \, dx \\ & = -\left (2 \int \frac {1}{1+e^x} \, dx\right )+\int \frac {-1-2 e^3 x}{x} \, dx \\ & = -\left (2 \text {Subst}\left (\int \frac {1}{x (1+x)} \, dx,x,e^x\right )\right )+\int \left (-2 e^3-\frac {1}{x}\right ) \, dx \\ & = -2 e^3 x-\log (x)-2 \text {Subst}\left (\int \frac {1}{x} \, dx,x,e^x\right )+2 \text {Subst}\left (\int \frac {1}{1+x} \, dx,x,e^x\right ) \\ & = -2 x-2 e^3 x+2 \log \left (1+e^x\right )-\log (x) \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.75 \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=-2 e^3 x+4 \text {arctanh}\left (1+2 e^x\right )-\log (x) \]
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Time = 0.68 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.75
method | result | size |
norman | \(\left (-2 \,{\mathrm e}^{3}-2\right ) x -\ln \left (x \right )+2 \ln \left ({\mathrm e}^{x}+1\right )\) | \(21\) |
risch | \(-2 x \,{\mathrm e}^{3}-\ln \left (x \right )-2 x +2 \ln \left ({\mathrm e}^{x}+1\right )\) | \(21\) |
parallelrisch | \(-2 x \,{\mathrm e}^{3}-\ln \left (x \right )-2 x +2 \ln \left ({\mathrm e}^{x}+1\right )\) | \(21\) |
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Time = 0.24 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.71 \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=-2 \, x e^{3} - 2 \, x - \log \left (x\right ) + 2 \, \log \left (e^{x} + 1\right ) \]
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Time = 0.09 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.68 \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=- x \left (2 + 2 e^{3}\right ) - \log {\left (x \right )} + 2 \log {\left (e^{x} + 1 \right )} \]
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Time = 0.21 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.68 \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=-2 \, x {\left (e^{3} + 1\right )} - \log \left (x\right ) + 2 \, \log \left (e^{x} + 1\right ) \]
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Time = 0.26 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.71 \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=-2 \, x e^{3} - 2 \, x - \log \left (x\right ) + 2 \, \log \left (e^{x} + 1\right ) \]
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Time = 12.28 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.75 \[ \int \frac {-1-2 x-2 e^3 x+e^x \left (-1-2 e^3 x\right )}{x+e^x x} \, dx=2\,\ln \left ({\mathrm {e}}^x+1\right )-\ln \left (x\right )-x\,\left (2\,{\mathrm {e}}^3+2\right ) \]
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