Optimal. Leaf size=26 \[ \frac {1}{\left (e^{2-e^{-1+x}}-e^x-x\right )^2 x^2} \]
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Rubi [F] time = 11.74, antiderivative size = 0, normalized size of antiderivative = 0.00, number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {} \begin {gather*} \int \frac {4 e x+e^{1+x} (2+2 x)+e^{\frac {2 e-e^x}{e}} \left (-2 e+2 e^x x\right )}{e^{1+\frac {3 \left (2 e-e^x\right )}{e}} x^3-e^{1+3 x} x^3-3 e^{1+2 x} x^4-3 e^{1+x} x^5-e x^6+e^{\frac {2 \left (2 e-e^x\right )}{e}} \left (-3 e^{1+x} x^3-3 e x^4\right )+e^{\frac {2 e-e^x}{e}} \left (3 e^{1+2 x} x^3+6 e^{1+x} x^4+3 e x^5\right )} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {gather*} \begin {aligned} \text {integral} &=\int \frac {2 e^{2 e^{-1+x}} \left (-e^2+2 e^{e^{-1+x}} x+e^{1+x} x+e^{e^{-1+x}+x} (1+x)\right )}{x^3 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^3} \, dx\\ &=2 \int \frac {e^{2 e^{-1+x}} \left (-e^2+2 e^{e^{-1+x}} x+e^{1+x} x+e^{e^{-1+x}+x} (1+x)\right )}{x^3 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^3} \, dx\\ &=2 \int \left (-\frac {e^{e^{-1+x}} \left (e^{e^{-1+x}}+e x+e^{e^{-1+x}} x\right )}{x^3 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2}+\frac {e^{e^{-1+x}} \left (-e^3-e^{2 e^{-1+x}}-e^{2+e^{-1+x}}+e^{2 e^{-1+x}} x+e^{1+e^{-1+x}} x\right )}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3}\right ) \, dx\\ &=-\left (2 \int \frac {e^{e^{-1+x}} \left (e^{e^{-1+x}}+e x+e^{e^{-1+x}} x\right )}{x^3 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2} \, dx\right )+2 \int \frac {e^{e^{-1+x}} \left (-e^3-e^{2 e^{-1+x}}-e^{2+e^{-1+x}}+e^{2 e^{-1+x}} x+e^{1+e^{-1+x}} x\right )}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx\\ &=2 \int \left (\frac {e^{3+e^{-1+x}}}{x^2 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^3}-\frac {e^{3 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3}-\frac {e^{2+2 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3}+\frac {e^{3 e^{-1+x}}}{x \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3}+\frac {e^{e^{-1+x}+\frac {e+e^x}{e}}}{x \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3}\right ) \, dx-2 \int \left (\frac {e^{1+e^{-1+x}}}{x^2 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^2}+\frac {e^{2 e^{-1+x}}}{x^3 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2}+\frac {e^{2 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2}\right ) \, dx\\ &=2 \int \frac {e^{3+e^{-1+x}}}{x^2 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^3} \, dx-2 \int \frac {e^{1+e^{-1+x}}}{x^2 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^2} \, dx-2 \int \frac {e^{3 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx-2 \int \frac {e^{2+2 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx+2 \int \frac {e^{3 e^{-1+x}}}{x \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx+2 \int \frac {e^{e^{-1+x}+\frac {e+e^x}{e}}}{x \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx-2 \int \frac {e^{2 e^{-1+x}}}{x^3 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2} \, dx-2 \int \frac {e^{2 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2} \, dx\\ &=2 \int \frac {e^{3+e^{-1+x}}}{x^2 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^3} \, dx-2 \int \frac {e^{\frac {e+e^x}{e}}}{x^2 \left (e^2-e^{e^{-1+x}+x}-e^{e^{-1+x}} x\right )^2} \, dx-2 \int \frac {e^{3 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx-2 \int \frac {e^{\frac {2 \left (e+e^x\right )}{e}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx+2 \int \frac {e^{3 e^{-1+x}}}{x \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx+2 \int \frac {e^{\frac {e+2 e^x}{e}}}{x \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^3} \, dx-2 \int \frac {e^{2 e^{-1+x}}}{x^3 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2} \, dx-2 \int \frac {e^{2 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2} \, dx\\ \end {aligned} \end {gather*}
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Mathematica [A] time = 3.44, size = 39, normalized size = 1.50 \begin {gather*} \frac {e^{2 e^{-1+x}}}{x^2 \left (-e^2+e^{e^{-1+x}+x}+e^{e^{-1+x}} x\right )^2} \end {gather*}
Antiderivative was successfully verified.
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fricas [B] time = 0.57, size = 86, normalized size = 3.31 \begin {gather*} \frac {e^{2}}{x^{4} e^{2} + 2 \, x^{3} e^{\left (x + 2\right )} + x^{2} e^{\left (\frac {2}{3} \, {\left (7 \, e^{2} - 3 \, e^{\left (x + 1\right )}\right )} e^{\left (-2\right )} + \frac {4}{3}\right )} + x^{2} e^{\left (2 \, x + 2\right )} - 2 \, {\left (x^{3} e^{\frac {5}{3}} + x^{2} e^{\left (x + \frac {5}{3}\right )}\right )} e^{\left (\frac {1}{3} \, {\left (7 \, e^{2} - 3 \, e^{\left (x + 1\right )}\right )} e^{\left (-2\right )}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [F(-1)] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.08, size = 26, normalized size = 1.00
method | result | size |
risch | \(\frac {1}{x^{2} \left ({\mathrm e}^{x}-{\mathrm e}^{\left (-{\mathrm e}^{x}+2 \,{\mathrm e}\right ) {\mathrm e}^{-1}}+x \right )^{2}}\) | \(26\) |
Verification of antiderivative is not currently implemented for this CAS.
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maxima [B] time = 0.70, size = 66, normalized size = 2.54 \begin {gather*} \frac {e^{\left (2 \, e^{\left (x - 1\right )}\right )}}{x^{2} e^{4} + {\left (x^{4} + 2 \, x^{3} e^{x} + x^{2} e^{\left (2 \, x\right )}\right )} e^{\left (2 \, e^{\left (x - 1\right )}\right )} - 2 \, {\left (x^{3} e^{2} + x^{2} e^{\left (x + 2\right )}\right )} e^{\left (e^{\left (x - 1\right )}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.04 \begin {gather*} \int -\frac {4\,x\,\mathrm {e}-{\mathrm {e}}^{{\mathrm {e}}^{-1}\,\left (2\,\mathrm {e}-{\mathrm {e}}^x\right )}\,\left (2\,\mathrm {e}-2\,x\,{\mathrm {e}}^x\right )+\mathrm {e}\,{\mathrm {e}}^x\,\left (2\,x+2\right )}{{\mathrm {e}}^{2\,{\mathrm {e}}^{-1}\,\left (2\,\mathrm {e}-{\mathrm {e}}^x\right )}\,\left (3\,x^4\,\mathrm {e}+3\,x^3\,\mathrm {e}\,{\mathrm {e}}^x\right )-{\mathrm {e}}^{{\mathrm {e}}^{-1}\,\left (2\,\mathrm {e}-{\mathrm {e}}^x\right )}\,\left (3\,x^5\,\mathrm {e}+6\,x^4\,\mathrm {e}\,{\mathrm {e}}^x+3\,x^3\,{\mathrm {e}}^{2\,x}\,\mathrm {e}\right )+x^6\,\mathrm {e}-x^3\,\mathrm {e}\,{\mathrm {e}}^{3\,{\mathrm {e}}^{-1}\,\left (2\,\mathrm {e}-{\mathrm {e}}^x\right )}+3\,x^5\,\mathrm {e}\,{\mathrm {e}}^x+x^3\,{\mathrm {e}}^{3\,x}\,\mathrm {e}+3\,x^4\,{\mathrm {e}}^{2\,x}\,\mathrm {e}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [B] time = 0.27, size = 68, normalized size = 2.62 \begin {gather*} \frac {1}{x^{4} + 2 x^{3} e^{x} + x^{2} e^{2 x} + x^{2} e^{\frac {2 \left (- e^{x} + 2 e\right )}{e}} + \left (- 2 x^{3} - 2 x^{2} e^{x}\right ) e^{\frac {- e^{x} + 2 e}{e}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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