Optimal. Leaf size=30 \[ -\frac{a^2}{3 x^3}-\frac{2 a b}{5 x^5}-\frac{b^2}{7 x^7} \]
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Rubi [A] time = 0.011996, antiderivative size = 30, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.154, Rules used = {263, 270} \[ -\frac{a^2}{3 x^3}-\frac{2 a b}{5 x^5}-\frac{b^2}{7 x^7} \]
Antiderivative was successfully verified.
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Rule 263
Rule 270
Rubi steps
\begin{align*} \int \frac{\left (a+\frac{b}{x^2}\right )^2}{x^4} \, dx &=\int \frac{\left (b+a x^2\right )^2}{x^8} \, dx\\ &=\int \left (\frac{b^2}{x^8}+\frac{2 a b}{x^6}+\frac{a^2}{x^4}\right ) \, dx\\ &=-\frac{b^2}{7 x^7}-\frac{2 a b}{5 x^5}-\frac{a^2}{3 x^3}\\ \end{align*}
Mathematica [A] time = 0.0007825, size = 30, normalized size = 1. \[ -\frac{a^2}{3 x^3}-\frac{2 a b}{5 x^5}-\frac{b^2}{7 x^7} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.003, size = 25, normalized size = 0.8 \begin{align*} -{\frac{{b}^{2}}{7\,{x}^{7}}}-{\frac{2\,ab}{5\,{x}^{5}}}-{\frac{{a}^{2}}{3\,{x}^{3}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.00278, size = 35, normalized size = 1.17 \begin{align*} -\frac{35 \, a^{2} x^{4} + 42 \, a b x^{2} + 15 \, b^{2}}{105 \, x^{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.41135, size = 63, normalized size = 2.1 \begin{align*} -\frac{35 \, a^{2} x^{4} + 42 \, a b x^{2} + 15 \, b^{2}}{105 \, x^{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.336951, size = 27, normalized size = 0.9 \begin{align*} - \frac{35 a^{2} x^{4} + 42 a b x^{2} + 15 b^{2}}{105 x^{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.15992, size = 35, normalized size = 1.17 \begin{align*} -\frac{35 \, a^{2} x^{4} + 42 \, a b x^{2} + 15 \, b^{2}}{105 \, x^{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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