Optimal. Leaf size=106 \[ \frac{105 b^{3/2} \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{16 a^{11/2}}+\frac{21}{16 a^3 x^3 \left (a+b x^2\right )}+\frac{3}{8 a^2 x^3 \left (a+b x^2\right )^2}+\frac{105 b}{16 a^5 x}-\frac{35}{16 a^4 x^3}+\frac{1}{6 a x^3 \left (a+b x^2\right )^3} \]
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Rubi [A] time = 0.0661874, antiderivative size = 106, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 4, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.167, Rules used = {28, 290, 325, 205} \[ \frac{105 b^{3/2} \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{16 a^{11/2}}+\frac{21}{16 a^3 x^3 \left (a+b x^2\right )}+\frac{3}{8 a^2 x^3 \left (a+b x^2\right )^2}+\frac{105 b}{16 a^5 x}-\frac{35}{16 a^4 x^3}+\frac{1}{6 a x^3 \left (a+b x^2\right )^3} \]
Antiderivative was successfully verified.
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Rule 28
Rule 290
Rule 325
Rule 205
Rubi steps
\begin{align*} \int \frac{1}{x^4 \left (a^2+2 a b x^2+b^2 x^4\right )^2} \, dx &=b^4 \int \frac{1}{x^4 \left (a b+b^2 x^2\right )^4} \, dx\\ &=\frac{1}{6 a x^3 \left (a+b x^2\right )^3}+\frac{\left (3 b^3\right ) \int \frac{1}{x^4 \left (a b+b^2 x^2\right )^3} \, dx}{2 a}\\ &=\frac{1}{6 a x^3 \left (a+b x^2\right )^3}+\frac{3}{8 a^2 x^3 \left (a+b x^2\right )^2}+\frac{\left (21 b^2\right ) \int \frac{1}{x^4 \left (a b+b^2 x^2\right )^2} \, dx}{8 a^2}\\ &=\frac{1}{6 a x^3 \left (a+b x^2\right )^3}+\frac{3}{8 a^2 x^3 \left (a+b x^2\right )^2}+\frac{21}{16 a^3 x^3 \left (a+b x^2\right )}+\frac{(105 b) \int \frac{1}{x^4 \left (a b+b^2 x^2\right )} \, dx}{16 a^3}\\ &=-\frac{35}{16 a^4 x^3}+\frac{1}{6 a x^3 \left (a+b x^2\right )^3}+\frac{3}{8 a^2 x^3 \left (a+b x^2\right )^2}+\frac{21}{16 a^3 x^3 \left (a+b x^2\right )}-\frac{\left (105 b^2\right ) \int \frac{1}{x^2 \left (a b+b^2 x^2\right )} \, dx}{16 a^4}\\ &=-\frac{35}{16 a^4 x^3}+\frac{105 b}{16 a^5 x}+\frac{1}{6 a x^3 \left (a+b x^2\right )^3}+\frac{3}{8 a^2 x^3 \left (a+b x^2\right )^2}+\frac{21}{16 a^3 x^3 \left (a+b x^2\right )}+\frac{\left (105 b^3\right ) \int \frac{1}{a b+b^2 x^2} \, dx}{16 a^5}\\ &=-\frac{35}{16 a^4 x^3}+\frac{105 b}{16 a^5 x}+\frac{1}{6 a x^3 \left (a+b x^2\right )^3}+\frac{3}{8 a^2 x^3 \left (a+b x^2\right )^2}+\frac{21}{16 a^3 x^3 \left (a+b x^2\right )}+\frac{105 b^{3/2} \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{16 a^{11/2}}\\ \end{align*}
Mathematica [A] time = 0.0474373, size = 91, normalized size = 0.86 \[ \frac{\frac{\sqrt{a} \left (693 a^2 b^2 x^4+144 a^3 b x^2-16 a^4+840 a b^3 x^6+315 b^4 x^8\right )}{x^3 \left (a+b x^2\right )^3}+315 b^{3/2} \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{48 a^{11/2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.056, size = 99, normalized size = 0.9 \begin{align*} -{\frac{1}{3\,{a}^{4}{x}^{3}}}+4\,{\frac{b}{{a}^{5}x}}+{\frac{41\,{b}^{4}{x}^{5}}{16\,{a}^{5} \left ( b{x}^{2}+a \right ) ^{3}}}+{\frac{35\,{b}^{3}{x}^{3}}{6\,{a}^{4} \left ( b{x}^{2}+a \right ) ^{3}}}+{\frac{55\,{b}^{2}x}{16\,{a}^{3} \left ( b{x}^{2}+a \right ) ^{3}}}+{\frac{105\,{b}^{2}}{16\,{a}^{5}}\arctan \left ({bx{\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 = 1.76567, size = 644, normalized size = 6.08 \begin{align*} \left [\frac{630 \, b^{4} x^{8} + 1680 \, a b^{3} x^{6} + 1386 \, a^{2} b^{2} x^{4} + 288 \, a^{3} b x^{2} - 32 \, a^{4} + 315 \,{\left (b^{4} x^{9} + 3 \, a b^{3} x^{7} + 3 \, a^{2} b^{2} x^{5} + a^{3} b x^{3}\right )} \sqrt{-\frac{b}{a}} \log \left (\frac{b x^{2} + 2 \, a x \sqrt{-\frac{b}{a}} - a}{b x^{2} + a}\right )}{96 \,{\left (a^{5} b^{3} x^{9} + 3 \, a^{6} b^{2} x^{7} + 3 \, a^{7} b x^{5} + a^{8} x^{3}\right )}}, \frac{315 \, b^{4} x^{8} + 840 \, a b^{3} x^{6} + 693 \, a^{2} b^{2} x^{4} + 144 \, a^{3} b x^{2} - 16 \, a^{4} + 315 \,{\left (b^{4} x^{9} + 3 \, a b^{3} x^{7} + 3 \, a^{2} b^{2} x^{5} + a^{3} b x^{3}\right )} \sqrt{\frac{b}{a}} \arctan \left (x \sqrt{\frac{b}{a}}\right )}{48 \,{\left (a^{5} b^{3} x^{9} + 3 \, a^{6} b^{2} x^{7} + 3 \, a^{7} b x^{5} + a^{8} x^{3}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 1.62734, size = 162, normalized size = 1.53 \begin{align*} - \frac{105 \sqrt{- \frac{b^{3}}{a^{11}}} \log{\left (- \frac{a^{6} \sqrt{- \frac{b^{3}}{a^{11}}}}{b^{2}} + x \right )}}{32} + \frac{105 \sqrt{- \frac{b^{3}}{a^{11}}} \log{\left (\frac{a^{6} \sqrt{- \frac{b^{3}}{a^{11}}}}{b^{2}} + x \right )}}{32} + \frac{- 16 a^{4} + 144 a^{3} b x^{2} + 693 a^{2} b^{2} x^{4} + 840 a b^{3} x^{6} + 315 b^{4} x^{8}}{48 a^{8} x^{3} + 144 a^{7} b x^{5} + 144 a^{6} b^{2} x^{7} + 48 a^{5} b^{3} x^{9}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.15613, size = 111, normalized size = 1.05 \begin{align*} \frac{105 \, b^{2} \arctan \left (\frac{b x}{\sqrt{a b}}\right )}{16 \, \sqrt{a b} a^{5}} + \frac{315 \, b^{4} x^{8} + 840 \, a b^{3} x^{6} + 693 \, a^{2} b^{2} x^{4} + 144 \, a^{3} b x^{2} - 16 \, a^{4}}{48 \,{\left (b x^{3} + a x\right )}^{3} a^{5}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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