Optimal. Leaf size=16 \[ -\frac{1}{3 x^3}-\frac{1}{3} \tan ^{-1}\left (x^3\right ) \]
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Rubi [A] time = 0.0064709, antiderivative size = 16, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 11, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.273, Rules used = {275, 325, 203} \[ -\frac{1}{3 x^3}-\frac{1}{3} \tan ^{-1}\left (x^3\right ) \]
Antiderivative was successfully verified.
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Rule 275
Rule 325
Rule 203
Rubi steps
\begin{align*} \int \frac{1}{x^4 \left (1+x^6\right )} \, dx &=\frac{1}{3} \operatorname{Subst}\left (\int \frac{1}{x^2 \left (1+x^2\right )} \, dx,x,x^3\right )\\ &=-\frac{1}{3 x^3}-\frac{1}{3} \operatorname{Subst}\left (\int \frac{1}{1+x^2} \, dx,x,x^3\right )\\ &=-\frac{1}{3 x^3}-\frac{1}{3} \tan ^{-1}\left (x^3\right )\\ \end{align*}
Mathematica [A] time = 0.0043492, size = 16, normalized size = 1. \[ \frac{1}{3} \tan ^{-1}\left (\frac{1}{x^3}\right )-\frac{1}{3 x^3} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.013, size = 33, normalized size = 2.1 \begin{align*}{\frac{\arctan \left ( x \right ) }{3}}-{\frac{1}{3\,{x}^{3}}}-{\frac{\arctan \left ( 2\,x-\sqrt{3} \right ) }{3}}-{\frac{\arctan \left ( 2\,x+\sqrt{3} \right ) }{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 2.41633, size = 16, normalized size = 1. \begin{align*} -\frac{1}{3 \, x^{3}} - \frac{1}{3} \, \arctan \left (x^{3}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.44824, size = 43, normalized size = 2.69 \begin{align*} -\frac{x^{3} \arctan \left (x^{3}\right ) + 1}{3 \, x^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.115805, size = 14, normalized size = 0.88 \begin{align*} - \frac{\operatorname{atan}{\left (x^{3} \right )}}{3} - \frac{1}{3 x^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.12215, size = 16, normalized size = 1. \begin{align*} -\frac{1}{3 \, x^{3}} - \frac{1}{3} \, \arctan \left (x^{3}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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