Optimal. Leaf size=17 \[ \frac{a x^4}{4}+\frac{b x^7}{7} \]
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Rubi [A] time = 0.0048759, antiderivative size = 17, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 1, integrand size = 11, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.091, Rules used = {14} \[ \frac{a x^4}{4}+\frac{b x^7}{7} \]
Antiderivative was successfully verified.
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Rule 14
Rubi steps
\begin{align*} \int x^3 \left (a+b x^3\right ) \, dx &=\int \left (a x^3+b x^6\right ) \, dx\\ &=\frac{a x^4}{4}+\frac{b x^7}{7}\\ \end{align*}
Mathematica [A] time = 0.0012789, size = 17, normalized size = 1. \[ \frac{a x^4}{4}+\frac{b x^7}{7} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.003, size = 14, normalized size = 0.8 \begin{align*}{\frac{a{x}^{4}}{4}}+{\frac{b{x}^{7}}{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.964016, size = 18, normalized size = 1.06 \begin{align*} \frac{1}{7} \, b x^{7} + \frac{1}{4} \, a x^{4} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.43995, size = 31, normalized size = 1.82 \begin{align*} \frac{1}{7} x^{7} b + \frac{1}{4} x^{4} a \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.058407, size = 12, normalized size = 0.71 \begin{align*} \frac{a x^{4}}{4} + \frac{b x^{7}}{7} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.12728, size = 18, normalized size = 1.06 \begin{align*} \frac{1}{7} \, b x^{7} + \frac{1}{4} \, a x^{4} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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