Optimal. Leaf size=25 \[ \frac {3 \left (3 x^4-2\right ) \left (x^6+x^2\right )^{2/3}}{40 x^8} \]
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Rubi [A] time = 0.05, antiderivative size = 37, normalized size of antiderivative = 1.48, number of steps used = 2, number of rules used = 2, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {2016, 2014} \begin {gather*} \frac {9 \left (x^6+x^2\right )^{2/3}}{40 x^4}-\frac {3 \left (x^6+x^2\right )^{2/3}}{20 x^8} \end {gather*}
Antiderivative was successfully verified.
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Rule 2014
Rule 2016
Rubi steps
\begin {align*} \int \frac {1}{x^7 \sqrt [3]{x^2+x^6}} \, dx &=-\frac {3 \left (x^2+x^6\right )^{2/3}}{20 x^8}-\frac {3}{5} \int \frac {1}{x^3 \sqrt [3]{x^2+x^6}} \, dx\\ &=-\frac {3 \left (x^2+x^6\right )^{2/3}}{20 x^8}+\frac {9 \left (x^2+x^6\right )^{2/3}}{40 x^4}\\ \end {align*}
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Mathematica [A] time = 0.01, size = 25, normalized size = 1.00 \begin {gather*} \frac {3 \left (3 x^4-2\right ) \left (x^6+x^2\right )^{2/3}}{40 x^8} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [A] time = 0.45, size = 25, normalized size = 1.00 \begin {gather*} \frac {3 \left (3 x^4-2\right ) \left (x^6+x^2\right )^{2/3}}{40 x^8} \end {gather*}
Antiderivative was successfully verified.
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fricas [A] time = 0.39, size = 21, normalized size = 0.84 \begin {gather*} \frac {3 \, {\left (x^{6} + x^{2}\right )}^{\frac {2}{3}} {\left (3 \, x^{4} - 2\right )}}{40 \, x^{8}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.49, size = 19, normalized size = 0.76 \begin {gather*} -\frac {3}{20} \, {\left (\frac {1}{x^{4}} + 1\right )}^{\frac {5}{3}} + \frac {3}{8} \, {\left (\frac {1}{x^{4}} + 1\right )}^{\frac {2}{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.00, size = 27, normalized size = 1.08 \begin {gather*} \frac {3 \left (x^{4}+1\right ) \left (3 x^{4}-2\right )}{40 x^{6} \left (x^{6}+x^{2}\right )^{\frac {1}{3}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.59, size = 28, normalized size = 1.12 \begin {gather*} \frac {3 \, {\left (3 \, x^{10} + x^{6} - 2 \, x^{2}\right )}}{40 \, {\left (x^{4} + 1\right )}^{\frac {1}{3}} {\left (x^{2}\right )}^{\frac {13}{3}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.21, size = 31, normalized size = 1.24 \begin {gather*} -\frac {6\,{\left (x^6+x^2\right )}^{2/3}-9\,x^4\,{\left (x^6+x^2\right )}^{2/3}}{40\,x^8} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{x^{7} \sqrt [3]{x^{2} \left (x^{4} + 1\right )}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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