Integrand size = 37, antiderivative size = 36 \[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx=5 \left (e^4-e^{5 e^5}-e^{\frac {-e^{2/x}+x}{x}}\right )+x \]
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\[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx=\int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (1-\frac {5 e^{1+\frac {2}{x}-\frac {e^{2/x}}{x}} (2+x)}{x^3}\right ) \, dx \\ & = x-5 \int \frac {e^{1+\frac {2}{x}-\frac {e^{2/x}}{x}} (2+x)}{x^3} \, dx \\ & = x-5 \int \left (\frac {2 e^{1+\frac {2}{x}-\frac {e^{2/x}}{x}}}{x^3}+\frac {e^{1+\frac {2}{x}-\frac {e^{2/x}}{x}}}{x^2}\right ) \, dx \\ & = x-5 \int \frac {e^{1+\frac {2}{x}-\frac {e^{2/x}}{x}}}{x^2} \, dx-10 \int \frac {e^{1+\frac {2}{x}-\frac {e^{2/x}}{x}}}{x^3} \, dx \\ & = x+5 \text {Subst}\left (\int e^{1+2 x-e^{2 x} x} \, dx,x,\frac {1}{x}\right )-10 \int \frac {e^{1+\frac {2}{x}-\frac {e^{2/x}}{x}}}{x^3} \, dx \\ \end{align*}
Time = 0.32 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.56 \[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx=-5 e^{1-\frac {e^{2/x}}{x}}+x \]
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Time = 0.16 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.56
method | result | size |
risch | \(x -5 \,{\mathrm e}^{\frac {-{\mathrm e}^{\frac {2}{x}}+x}{x}}\) | \(20\) |
parts | \(x -5 \,{\mathrm e}^{\frac {-{\mathrm e}^{\frac {2}{x}}+x}{x}}\) | \(20\) |
parallelrisch | \(x -5 \,{\mathrm e}^{-\frac {{\mathrm e}^{\frac {2}{x}}-x}{x}}\) | \(21\) |
norman | \(\frac {x^{3}-5 x^{2} {\mathrm e}^{\frac {-{\mathrm e}^{\frac {2}{x}}+x}{x}}}{x^{2}}\) | \(29\) |
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Time = 0.27 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.94 \[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx={\left (x e^{\frac {2}{x}} - 5 \, e^{\left (\frac {x - e^{\frac {2}{x}} + 2}{x}\right )}\right )} e^{\left (-\frac {2}{x}\right )} \]
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Time = 0.10 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.33 \[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx=x - 5 e^{\frac {x - e^{\frac {2}{x}}}{x}} \]
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Time = 0.25 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.50 \[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx=x - 5 \, e^{\left (-\frac {e^{\frac {2}{x}}}{x} + 1\right )} \]
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Time = 0.27 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.94 \[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx={\left (x e^{\frac {2}{x}} - 5 \, e^{\left (\frac {x - e^{\frac {2}{x}} + 2}{x}\right )}\right )} e^{\left (-\frac {2}{x}\right )} \]
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Time = 8.36 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.50 \[ \int \frac {e^{\frac {2}{x}+\frac {-e^{2/x}+x}{x}} (-10-5 x)+x^3}{x^3} \, dx=x-5\,{\mathrm {e}}^{-\frac {{\mathrm {e}}^{2/x}}{x}}\,\mathrm {e} \]
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