Integrand size = 69, antiderivative size = 26 \[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx=3+e^{\frac {e^{4 x}}{x^4}}-\log \left (3-\frac {e^x}{x}\right ) \]
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\[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx=\int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {e^x (1-x) \left (-4 e^{\frac {e^{4 x}}{x^4}+4 x}+12 e^{\frac {e^{4 x}}{x^4}+3 x} x+x^4\right )}{e^x x^5-3 x^6} \, dx \\ & = \int \left (\frac {4 e^{\frac {e^{4 x}}{x^4}+4 x} (-1+x)}{x^5}-\frac {e^x (-1+x)}{\left (e^x-3 x\right ) x}\right ) \, dx \\ & = 4 \int \frac {e^{\frac {e^{4 x}}{x^4}+4 x} (-1+x)}{x^5} \, dx-\int \frac {e^x (-1+x)}{\left (e^x-3 x\right ) x} \, dx \\ & = 4 \int \left (-\frac {e^{\frac {e^{4 x}}{x^4}+4 x}}{x^5}+\frac {e^{\frac {e^{4 x}}{x^4}+4 x}}{x^4}\right ) \, dx-\text {Subst}\left (\int \frac {1}{-3+x} \, dx,x,\frac {e^x}{x}\right ) \\ & = -\log \left (3-\frac {e^x}{x}\right )-4 \int \frac {e^{\frac {e^{4 x}}{x^4}+4 x}}{x^5} \, dx+4 \int \frac {e^{\frac {e^{4 x}}{x^4}+4 x}}{x^4} \, dx \\ \end{align*}
Time = 0.52 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.92 \[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx=e^{\frac {e^{4 x}}{x^4}}-\log \left (e^x-3 x\right )+\log (x) \]
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Time = 0.70 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.85
method | result | size |
risch | \(\ln \left (x \right )-\ln \left ({\mathrm e}^{x}-3 x \right )+{\mathrm e}^{\frac {{\mathrm e}^{4 x}}{x^{4}}}\) | \(22\) |
parallelrisch | \({\mathrm e}^{\frac {{\mathrm e}^{4 x}}{x^{4}}}+\ln \left (x \right )-\ln \left (-\frac {{\mathrm e}^{x}}{3}+x \right )\) | \(22\) |
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Time = 0.29 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.81 \[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx=e^{\left (\frac {e^{\left (4 \, x\right )}}{x^{4}}\right )} + \log \left (x\right ) - \log \left (-3 \, x + e^{x}\right ) \]
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Time = 0.19 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.77 \[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx=e^{\frac {e^{4 x}}{x^{4}}} + \log {\left (x \right )} - \log {\left (- 3 x + e^{x} \right )} \]
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Time = 0.22 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.81 \[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx=e^{\left (\frac {e^{\left (4 \, x\right )}}{x^{4}}\right )} + \log \left (x\right ) - \log \left (-3 \, x + e^{x}\right ) \]
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Time = 0.30 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.77 \[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx=-{\left (e^{\left (4 \, x\right )} \log \left (3 \, x - e^{x}\right ) - e^{\left (4 \, x\right )} \log \left (x\right ) - e^{\left (\frac {4 \, x^{5} + e^{\left (4 \, x\right )}}{x^{4}}\right )}\right )} e^{\left (-4 \, x\right )} \]
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Time = 11.88 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.81 \[ \int \frac {e^x \left (x^4-x^5\right )+e^{\frac {e^{4 x}}{x^4}} \left (e^{5 x} (-4+4 x)+e^{4 x} \left (12 x-12 x^2\right )\right )}{e^x x^5-3 x^6} \, dx={\mathrm {e}}^{\frac {{\mathrm {e}}^{4\,x}}{x^4}}-\ln \left ({\mathrm {e}}^x-3\,x\right )+\ln \left (x\right ) \]
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