Optimal. Leaf size=92 \[ \frac{3 b^2 x^3}{2 a^4}-\frac{9 b^3 x}{2 a^5}+\frac{9 b^{7/2} \tan ^{-1}\left (\frac{\sqrt{a} x}{\sqrt{b}}\right )}{2 a^{11/2}}-\frac{9 b x^5}{10 a^3}+\frac{9 x^7}{14 a^2}-\frac{x^9}{2 a \left (a x^2+b\right )} \]
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Rubi [A] time = 0.037117, antiderivative size = 92, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 4, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.308, Rules used = {263, 288, 302, 205} \[ \frac{3 b^2 x^3}{2 a^4}-\frac{9 b^3 x}{2 a^5}+\frac{9 b^{7/2} \tan ^{-1}\left (\frac{\sqrt{a} x}{\sqrt{b}}\right )}{2 a^{11/2}}-\frac{9 b x^5}{10 a^3}+\frac{9 x^7}{14 a^2}-\frac{x^9}{2 a \left (a x^2+b\right )} \]
Antiderivative was successfully verified.
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Rule 263
Rule 288
Rule 302
Rule 205
Rubi steps
\begin{align*} \int \frac{x^6}{\left (a+\frac{b}{x^2}\right )^2} \, dx &=\int \frac{x^{10}}{\left (b+a x^2\right )^2} \, dx\\ &=-\frac{x^9}{2 a \left (b+a x^2\right )}+\frac{9 \int \frac{x^8}{b+a x^2} \, dx}{2 a}\\ &=-\frac{x^9}{2 a \left (b+a x^2\right )}+\frac{9 \int \left (-\frac{b^3}{a^4}+\frac{b^2 x^2}{a^3}-\frac{b x^4}{a^2}+\frac{x^6}{a}+\frac{b^4}{a^4 \left (b+a x^2\right )}\right ) \, dx}{2 a}\\ &=-\frac{9 b^3 x}{2 a^5}+\frac{3 b^2 x^3}{2 a^4}-\frac{9 b x^5}{10 a^3}+\frac{9 x^7}{14 a^2}-\frac{x^9}{2 a \left (b+a x^2\right )}+\frac{\left (9 b^4\right ) \int \frac{1}{b+a x^2} \, dx}{2 a^5}\\ &=-\frac{9 b^3 x}{2 a^5}+\frac{3 b^2 x^3}{2 a^4}-\frac{9 b x^5}{10 a^3}+\frac{9 x^7}{14 a^2}-\frac{x^9}{2 a \left (b+a x^2\right )}+\frac{9 b^{7/2} \tan ^{-1}\left (\frac{\sqrt{a} x}{\sqrt{b}}\right )}{2 a^{11/2}}\\ \end{align*}
Mathematica [A] time = 0.0522571, size = 82, normalized size = 0.89 \[ \frac{x \left (-28 a^2 b x^4+10 a^3 x^6+70 a b^2 x^2-\frac{35 b^4}{a x^2+b}-280 b^3\right )}{70 a^5}+\frac{9 b^{7/2} \tan ^{-1}\left (\frac{\sqrt{a} x}{\sqrt{b}}\right )}{2 a^{11/2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.009, size = 78, normalized size = 0.9 \begin{align*}{\frac{{x}^{7}}{7\,{a}^{2}}}-{\frac{2\,b{x}^{5}}{5\,{a}^{3}}}+{\frac{{b}^{2}{x}^{3}}{{a}^{4}}}-4\,{\frac{{b}^{3}x}{{a}^{5}}}-{\frac{{b}^{4}x}{2\,{a}^{5} \left ( a{x}^{2}+b \right ) }}+{\frac{9\,{b}^{4}}{2\,{a}^{5}}\arctan \left ({ax{\frac{1}{\sqrt{ab}}}} \right ){\frac{1}{\sqrt{ab}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.73171, size = 459, normalized size = 4.99 \begin{align*} \left [\frac{20 \, a^{4} x^{9} - 36 \, a^{3} b x^{7} + 84 \, a^{2} b^{2} x^{5} - 420 \, a b^{3} x^{3} - 630 \, b^{4} x + 315 \,{\left (a b^{3} x^{2} + b^{4}\right )} \sqrt{-\frac{b}{a}} \log \left (\frac{a x^{2} + 2 \, a x \sqrt{-\frac{b}{a}} - b}{a x^{2} + b}\right )}{140 \,{\left (a^{6} x^{2} + a^{5} b\right )}}, \frac{10 \, a^{4} x^{9} - 18 \, a^{3} b x^{7} + 42 \, a^{2} b^{2} x^{5} - 210 \, a b^{3} x^{3} - 315 \, b^{4} x + 315 \,{\left (a b^{3} x^{2} + b^{4}\right )} \sqrt{\frac{b}{a}} \arctan \left (\frac{a x \sqrt{\frac{b}{a}}}{b}\right )}{70 \,{\left (a^{6} x^{2} + a^{5} b\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.659533, size = 134, normalized size = 1.46 \begin{align*} - \frac{b^{4} x}{2 a^{6} x^{2} + 2 a^{5} b} - \frac{9 \sqrt{- \frac{b^{7}}{a^{11}}} \log{\left (- \frac{a^{5} \sqrt{- \frac{b^{7}}{a^{11}}}}{b^{3}} + x \right )}}{4} + \frac{9 \sqrt{- \frac{b^{7}}{a^{11}}} \log{\left (\frac{a^{5} \sqrt{- \frac{b^{7}}{a^{11}}}}{b^{3}} + x \right )}}{4} + \frac{x^{7}}{7 a^{2}} - \frac{2 b x^{5}}{5 a^{3}} + \frac{b^{2} x^{3}}{a^{4}} - \frac{4 b^{3} x}{a^{5}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.18883, size = 113, normalized size = 1.23 \begin{align*} \frac{9 \, b^{4} \arctan \left (\frac{a x}{\sqrt{a b}}\right )}{2 \, \sqrt{a b} a^{5}} - \frac{b^{4} x}{2 \,{\left (a x^{2} + b\right )} a^{5}} + \frac{5 \, a^{12} x^{7} - 14 \, a^{11} b x^{5} + 35 \, a^{10} b^{2} x^{3} - 140 \, a^{9} b^{3} x}{35 \, a^{14}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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