Optimal. Leaf size=88 \[ \frac{b (A b-4 a B) \tanh ^{-1}\left (\frac{\sqrt{a+b x^2}}{\sqrt{a}}\right )}{8 a^{3/2}}+\frac{\sqrt{a+b x^2} (A b-4 a B)}{8 a x^2}-\frac{A \left (a+b x^2\right )^{3/2}}{4 a x^4} \]
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Rubi [A] time = 0.0688513, antiderivative size = 88, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.227, Rules used = {446, 78, 47, 63, 208} \[ \frac{b (A b-4 a B) \tanh ^{-1}\left (\frac{\sqrt{a+b x^2}}{\sqrt{a}}\right )}{8 a^{3/2}}+\frac{\sqrt{a+b x^2} (A b-4 a B)}{8 a x^2}-\frac{A \left (a+b x^2\right )^{3/2}}{4 a x^4} \]
Antiderivative was successfully verified.
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Rule 446
Rule 78
Rule 47
Rule 63
Rule 208
Rubi steps
\begin{align*} \int \frac{\sqrt{a+b x^2} \left (A+B x^2\right )}{x^5} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{\sqrt{a+b x} (A+B x)}{x^3} \, dx,x,x^2\right )\\ &=-\frac{A \left (a+b x^2\right )^{3/2}}{4 a x^4}+\frac{\left (-\frac{A b}{2}+2 a B\right ) \operatorname{Subst}\left (\int \frac{\sqrt{a+b x}}{x^2} \, dx,x,x^2\right )}{4 a}\\ &=\frac{(A b-4 a B) \sqrt{a+b x^2}}{8 a x^2}-\frac{A \left (a+b x^2\right )^{3/2}}{4 a x^4}-\frac{(b (A b-4 a B)) \operatorname{Subst}\left (\int \frac{1}{x \sqrt{a+b x}} \, dx,x,x^2\right )}{16 a}\\ &=\frac{(A b-4 a B) \sqrt{a+b x^2}}{8 a x^2}-\frac{A \left (a+b x^2\right )^{3/2}}{4 a x^4}-\frac{(A b-4 a B) \operatorname{Subst}\left (\int \frac{1}{-\frac{a}{b}+\frac{x^2}{b}} \, dx,x,\sqrt{a+b x^2}\right )}{8 a}\\ &=\frac{(A b-4 a B) \sqrt{a+b x^2}}{8 a x^2}-\frac{A \left (a+b x^2\right )^{3/2}}{4 a x^4}+\frac{b (A b-4 a B) \tanh ^{-1}\left (\frac{\sqrt{a+b x^2}}{\sqrt{a}}\right )}{8 a^{3/2}}\\ \end{align*}
Mathematica [A] time = 0.0702502, size = 93, normalized size = 1.06 \[ \frac{-\left (a+b x^2\right ) \left (2 a \left (A+2 B x^2\right )+A b x^2\right )-b x^4 \sqrt{\frac{b x^2}{a}+1} (4 a B-A b) \tanh ^{-1}\left (\sqrt{\frac{b x^2}{a}+1}\right )}{8 a x^4 \sqrt{a+b x^2}} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.01, size = 153, normalized size = 1.7 \begin{align*} -{\frac{A}{4\,a{x}^{4}} \left ( b{x}^{2}+a \right ) ^{{\frac{3}{2}}}}+{\frac{Ab}{8\,{a}^{2}{x}^{2}} \left ( b{x}^{2}+a \right ) ^{{\frac{3}{2}}}}+{\frac{A{b}^{2}}{8}\ln \left ({\frac{1}{x} \left ( 2\,a+2\,\sqrt{a}\sqrt{b{x}^{2}+a} \right ) } \right ){a}^{-{\frac{3}{2}}}}-{\frac{A{b}^{2}}{8\,{a}^{2}}\sqrt{b{x}^{2}+a}}-{\frac{B}{2\,a{x}^{2}} \left ( b{x}^{2}+a \right ) ^{{\frac{3}{2}}}}-{\frac{Bb}{2}\ln \left ({\frac{1}{x} \left ( 2\,a+2\,\sqrt{a}\sqrt{b{x}^{2}+a} \right ) } \right ){\frac{1}{\sqrt{a}}}}+{\frac{Bb}{2\,a}\sqrt{b{x}^{2}+a}} \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 = 1.60376, size = 394, normalized size = 4.48 \begin{align*} \left [-\frac{{\left (4 \, B a b - A b^{2}\right )} \sqrt{a} x^{4} \log \left (-\frac{b x^{2} + 2 \, \sqrt{b x^{2} + a} \sqrt{a} + 2 \, a}{x^{2}}\right ) + 2 \,{\left (2 \, A a^{2} +{\left (4 \, B a^{2} + A a b\right )} x^{2}\right )} \sqrt{b x^{2} + a}}{16 \, a^{2} x^{4}}, \frac{{\left (4 \, B a b - A b^{2}\right )} \sqrt{-a} x^{4} \arctan \left (\frac{\sqrt{-a}}{\sqrt{b x^{2} + a}}\right ) -{\left (2 \, A a^{2} +{\left (4 \, B a^{2} + A a b\right )} x^{2}\right )} \sqrt{b x^{2} + a}}{8 \, a^{2} x^{4}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 46.1759, size = 144, normalized size = 1.64 \begin{align*} - \frac{A a}{4 \sqrt{b} x^{5} \sqrt{\frac{a}{b x^{2}} + 1}} - \frac{3 A \sqrt{b}}{8 x^{3} \sqrt{\frac{a}{b x^{2}} + 1}} - \frac{A b^{\frac{3}{2}}}{8 a x \sqrt{\frac{a}{b x^{2}} + 1}} + \frac{A b^{2} \operatorname{asinh}{\left (\frac{\sqrt{a}}{\sqrt{b} x} \right )}}{8 a^{\frac{3}{2}}} - \frac{B \sqrt{b} \sqrt{\frac{a}{b x^{2}} + 1}}{2 x} - \frac{B b \operatorname{asinh}{\left (\frac{\sqrt{a}}{\sqrt{b} x} \right )}}{2 \sqrt{a}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.11024, size = 162, normalized size = 1.84 \begin{align*} \frac{\frac{{\left (4 \, B a b^{2} - A b^{3}\right )} \arctan \left (\frac{\sqrt{b x^{2} + a}}{\sqrt{-a}}\right )}{\sqrt{-a} a} - \frac{4 \,{\left (b x^{2} + a\right )}^{\frac{3}{2}} B a b^{2} - 4 \, \sqrt{b x^{2} + a} B a^{2} b^{2} +{\left (b x^{2} + a\right )}^{\frac{3}{2}} A b^{3} + \sqrt{b x^{2} + a} A a b^{3}}{a b^{2} x^{4}}}{8 \, b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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