Optimal. Leaf size=62 \[ \frac {x^4}{4}+\frac {1}{40} \left (15-7 \sqrt {5}\right ) \log \left (-2 x^4-\sqrt {5}+3\right )+\frac {1}{40} \left (15+7 \sqrt {5}\right ) \log \left (-2 x^4+\sqrt {5}+3\right ) \]
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Rubi [A] time = 0.05, antiderivative size = 62, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {1357, 703, 632, 31} \[ \frac {x^4}{4}+\frac {1}{40} \left (15-7 \sqrt {5}\right ) \log \left (-2 x^4-\sqrt {5}+3\right )+\frac {1}{40} \left (15+7 \sqrt {5}\right ) \log \left (-2 x^4+\sqrt {5}+3\right ) \]
Antiderivative was successfully verified.
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Rule 31
Rule 632
Rule 703
Rule 1357
Rubi steps
\begin {align*} \int \frac {x^{11}}{1-3 x^4+x^8} \, dx &=\frac {1}{4} \operatorname {Subst}\left (\int \frac {x^2}{1-3 x+x^2} \, dx,x,x^4\right )\\ &=\frac {x^4}{4}+\frac {1}{4} \operatorname {Subst}\left (\int \frac {-1+3 x}{1-3 x+x^2} \, dx,x,x^4\right )\\ &=\frac {x^4}{4}+\frac {1}{40} \left (15-7 \sqrt {5}\right ) \operatorname {Subst}\left (\int \frac {1}{-\frac {3}{2}+\frac {\sqrt {5}}{2}+x} \, dx,x,x^4\right )+\frac {1}{40} \left (15+7 \sqrt {5}\right ) \operatorname {Subst}\left (\int \frac {1}{-\frac {3}{2}-\frac {\sqrt {5}}{2}+x} \, dx,x,x^4\right )\\ &=\frac {x^4}{4}+\frac {1}{40} \left (15-7 \sqrt {5}\right ) \log \left (3-\sqrt {5}-2 x^4\right )+\frac {1}{40} \left (15+7 \sqrt {5}\right ) \log \left (3+\sqrt {5}-2 x^4\right )\\ \end {align*}
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Mathematica [A] time = 0.03, size = 56, normalized size = 0.90 \[ \frac {1}{40} \left (10 x^4+\left (15+7 \sqrt {5}\right ) \log \left (-2 x^4+\sqrt {5}+3\right )+\left (15-7 \sqrt {5}\right ) \log \left (2 x^4+\sqrt {5}-3\right )\right ) \]
Antiderivative was successfully verified.
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fricas [A] time = 0.71, size = 62, normalized size = 1.00 \[ \frac {1}{4} \, x^{4} + \frac {7}{40} \, \sqrt {5} \log \left (\frac {2 \, x^{8} - 6 \, x^{4} - \sqrt {5} {\left (2 \, x^{4} - 3\right )} + 7}{x^{8} - 3 \, x^{4} + 1}\right ) + \frac {3}{8} \, \log \left (x^{8} - 3 \, x^{4} + 1\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.42, size = 53, normalized size = 0.85 \[ \frac {1}{4} \, x^{4} + \frac {7}{40} \, \sqrt {5} \log \left (\frac {{\left | 2 \, x^{4} - \sqrt {5} - 3 \right |}}{{\left | 2 \, x^{4} + \sqrt {5} - 3 \right |}}\right ) + \frac {3}{8} \, \log \left ({\left | x^{8} - 3 \, x^{4} + 1 \right |}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.00, size = 38, normalized size = 0.61 \[ \frac {x^{4}}{4}-\frac {7 \sqrt {5}\, \arctanh \left (\frac {\left (2 x^{4}-3\right ) \sqrt {5}}{5}\right )}{20}+\frac {3 \ln \left (x^{8}-3 x^{4}+1\right )}{8} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.39, size = 50, normalized size = 0.81 \[ \frac {1}{4} \, x^{4} + \frac {7}{40} \, \sqrt {5} \log \left (\frac {2 \, x^{4} - \sqrt {5} - 3}{2 \, x^{4} + \sqrt {5} - 3}\right ) + \frac {3}{8} \, \log \left (x^{8} - 3 \, x^{4} + 1\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.12, size = 64, normalized size = 1.03 \[ \frac {3\,\ln \left (x^4-\frac {\sqrt {5}}{2}-\frac {3}{2}\right )}{8}+\frac {3\,\ln \left (x^4+\frac {\sqrt {5}}{2}-\frac {3}{2}\right )}{8}+\frac {7\,\sqrt {5}\,\ln \left (x^4-\frac {\sqrt {5}}{2}-\frac {3}{2}\right )}{40}-\frac {7\,\sqrt {5}\,\ln \left (x^4+\frac {\sqrt {5}}{2}-\frac {3}{2}\right )}{40}+\frac {x^4}{4} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.14, size = 58, normalized size = 0.94 \[ \frac {x^{4}}{4} + \left (\frac {3}{8} + \frac {7 \sqrt {5}}{40}\right ) \log {\left (x^{4} - \frac {3}{2} - \frac {\sqrt {5}}{2} \right )} + \left (\frac {3}{8} - \frac {7 \sqrt {5}}{40}\right ) \log {\left (x^{4} - \frac {3}{2} + \frac {\sqrt {5}}{2} \right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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