Optimal. Leaf size=22 \[ \frac{x^7}{7}-\frac{8 x^5}{5}+\frac{16 x^3}{3} \]
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Rubi [A] time = 0.0068336, antiderivative size = 22, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 1, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.077, Rules used = {270} \[ \frac{x^7}{7}-\frac{8 x^5}{5}+\frac{16 x^3}{3} \]
Antiderivative was successfully verified.
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Rule 270
Rubi steps
\begin{align*} \int x^2 \left (4-x^2\right )^2 \, dx &=\int \left (16 x^2-8 x^4+x^6\right ) \, dx\\ &=\frac{16 x^3}{3}-\frac{8 x^5}{5}+\frac{x^7}{7}\\ \end{align*}
Mathematica [A] time = 0.0006652, size = 22, normalized size = 1. \[ \frac{x^7}{7}-\frac{8 x^5}{5}+\frac{16 x^3}{3} \]
Antiderivative was successfully verified.
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Maple [A] time = 0., size = 17, normalized size = 0.8 \begin{align*}{\frac{16\,{x}^{3}}{3}}-{\frac{8\,{x}^{5}}{5}}+{\frac{{x}^{7}}{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.04056, size = 22, normalized size = 1. \begin{align*} \frac{1}{7} \, x^{7} - \frac{8}{5} \, x^{5} + \frac{16}{3} \, x^{3} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.1137, size = 41, normalized size = 1.86 \begin{align*} \frac{1}{7} x^{7} - \frac{8}{5} x^{5} + \frac{16}{3} x^{3} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.052004, size = 17, normalized size = 0.77 \begin{align*} \frac{x^{7}}{7} - \frac{8 x^{5}}{5} + \frac{16 x^{3}}{3} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.11976, size = 22, normalized size = 1. \begin{align*} \frac{1}{7} \, x^{7} - \frac{8}{5} \, x^{5} + \frac{16}{3} \, x^{3} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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