Optimal. Leaf size=18 \[ -\frac{1}{7 b \left (a+b x^2\right )^{7/2}} \]
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Rubi [A] time = 0.0037261, antiderivative size = 18, normalized size of antiderivative = 1., number of steps used = 1, number of rules used = 1, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.077, Rules used = {261} \[ -\frac{1}{7 b \left (a+b x^2\right )^{7/2}} \]
Antiderivative was successfully verified.
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Rule 261
Rubi steps
\begin{align*} \int \frac{x}{\left (a+b x^2\right )^{9/2}} \, dx &=-\frac{1}{7 b \left (a+b x^2\right )^{7/2}}\\ \end{align*}
Mathematica [A] time = 0.0044308, size = 18, normalized size = 1. \[ -\frac{1}{7 b \left (a+b x^2\right )^{7/2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.003, size = 15, normalized size = 0.8 \begin{align*} -{\frac{1}{7\,b} \left ( b{x}^{2}+a \right ) ^{-{\frac{7}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 2.29914, size = 19, normalized size = 1.06 \begin{align*} -\frac{1}{7 \,{\left (b x^{2} + a\right )}^{\frac{7}{2}} b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.37224, size = 116, normalized size = 6.44 \begin{align*} -\frac{\sqrt{b x^{2} + a}}{7 \,{\left (b^{5} x^{8} + 4 \, a b^{4} x^{6} + 6 \, a^{2} b^{3} x^{4} + 4 \, a^{3} b^{2} x^{2} + a^{4} b\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 5.12714, size = 90, normalized size = 5. \begin{align*} \begin{cases} - \frac{1}{7 a^{3} b \sqrt{a + b x^{2}} + 21 a^{2} b^{2} x^{2} \sqrt{a + b x^{2}} + 21 a b^{3} x^{4} \sqrt{a + b x^{2}} + 7 b^{4} x^{6} \sqrt{a + b x^{2}}} & \text{for}\: b \neq 0 \\\frac{x^{2}}{2 a^{\frac{9}{2}}} & \text{otherwise} \end{cases} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.51784, size = 19, normalized size = 1.06 \begin{align*} -\frac{1}{7 \,{\left (b x^{2} + a\right )}^{\frac{7}{2}} b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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