Optimal. Leaf size=16 \[ -\frac{1}{2 b \left (a+b x^2\right )} \]
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Rubi [A] time = 0.0053895, antiderivative size = 16, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.091, Rules used = {28, 261} \[ -\frac{1}{2 b \left (a+b x^2\right )} \]
Antiderivative was successfully verified.
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Rule 28
Rule 261
Rubi steps
\begin{align*} \int \frac{x}{a^2+2 a b x^2+b^2 x^4} \, dx &=b^2 \int \frac{x}{\left (a b+b^2 x^2\right )^2} \, dx\\ &=-\frac{1}{2 b \left (a+b x^2\right )}\\ \end{align*}
Mathematica [A] time = 0.0028788, size = 16, normalized size = 1. \[ -\frac{1}{2 b \left (a+b x^2\right )} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.046, size = 15, normalized size = 0.9 \begin{align*} -{\frac{1}{2\,b \left ( b{x}^{2}+a \right ) }} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.04055, size = 20, normalized size = 1.25 \begin{align*} -\frac{1}{2 \,{\left (b^{2} x^{2} + a b\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.57589, size = 30, normalized size = 1.88 \begin{align*} -\frac{1}{2 \,{\left (b^{2} x^{2} + a b\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.293952, size = 15, normalized size = 0.94 \begin{align*} - \frac{1}{2 a b + 2 b^{2} x^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.15217, size = 19, normalized size = 1.19 \begin{align*} -\frac{1}{2 \,{\left (b x^{2} + a\right )} b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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