Optimal. Leaf size=32 \[ \frac{2 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{\frac{a}{x}+b x^2}}\right )}{3 \sqrt{b}} \]
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Rubi [A] time = 0.0144815, antiderivative size = 32, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 15, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.2, Rules used = {1979, 2008, 206} \[ \frac{2 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{\frac{a}{x}+b x^2}}\right )}{3 \sqrt{b}} \]
Antiderivative was successfully verified.
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Rule 1979
Rule 2008
Rule 206
Rubi steps
\begin{align*} \int \frac{1}{\sqrt{\frac{a+b x^3}{x}}} \, dx &=\int \frac{1}{\sqrt{\frac{a}{x}+b x^2}} \, dx\\ &=\frac{2}{3} \operatorname{Subst}\left (\int \frac{1}{1-b x^2} \, dx,x,\frac{x}{\sqrt{\frac{a}{x}+b x^2}}\right )\\ &=\frac{2 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{\frac{a}{x}+b x^2}}\right )}{3 \sqrt{b}}\\ \end{align*}
Mathematica [A] time = 0.0238737, size = 63, normalized size = 1.97 \[ \frac{2 \sqrt{a+b x^3} \tanh ^{-1}\left (\frac{\sqrt{b} x^{3/2}}{\sqrt{a+b x^3}}\right )}{3 \sqrt{b} \sqrt{x} \sqrt{\frac{a+b x^3}{x}}} \]
Antiderivative was successfully verified.
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Maple [C] time = 0.014, size = 477, normalized size = 14.9 \begin{align*} -4\,{\frac{ \left ( b{x}^{3}+a \right ) \left ( -1+i\sqrt{3} \right ) \left ( -bx+\sqrt [3]{-{b}^{2}a} \right ) ^{2}}{{b}^{2}\sqrt{ \left ( b{x}^{3}+a \right ) x} \left ( i\sqrt{3}-3 \right ) }\sqrt{-{\frac{ \left ( i\sqrt{3}-3 \right ) xb}{ \left ( -1+i\sqrt{3} \right ) \left ( -bx+\sqrt [3]{-{b}^{2}a} \right ) }}}\sqrt{{\frac{i\sqrt{3}\sqrt [3]{-{b}^{2}a}+2\,bx+\sqrt [3]{-{b}^{2}a}}{ \left ( 1+i\sqrt{3} \right ) \left ( -bx+\sqrt [3]{-{b}^{2}a} \right ) }}}\sqrt{{\frac{i\sqrt{3}\sqrt [3]{-{b}^{2}a}-2\,bx-\sqrt [3]{-{b}^{2}a}}{ \left ( -1+i\sqrt{3} \right ) \left ( -bx+\sqrt [3]{-{b}^{2}a} \right ) }}} \left ({\it EllipticF} \left ( \sqrt{-{\frac{ \left ( i\sqrt{3}-3 \right ) xb}{ \left ( -1+i\sqrt{3} \right ) \left ( -bx+\sqrt [3]{-{b}^{2}a} \right ) }}},\sqrt{{\frac{ \left ( i\sqrt{3}+3 \right ) \left ( -1+i\sqrt{3} \right ) }{ \left ( i\sqrt{3}-3 \right ) \left ( 1+i\sqrt{3} \right ) }}} \right ) -{\it EllipticPi} \left ( \sqrt{-{\frac{ \left ( i\sqrt{3}-3 \right ) xb}{ \left ( -1+i\sqrt{3} \right ) \left ( -bx+\sqrt [3]{-{b}^{2}a} \right ) }}},{\frac{-1+i\sqrt{3}}{i\sqrt{3}-3}},\sqrt{{\frac{ \left ( i\sqrt{3}+3 \right ) \left ( -1+i\sqrt{3} \right ) }{ \left ( i\sqrt{3}-3 \right ) \left ( 1+i\sqrt{3} \right ) }}} \right ) \right ){\frac{1}{\sqrt{{\frac{b{x}^{3}+a}{x}}}}}{\frac{1}{\sqrt{{\frac{x \left ( -bx+\sqrt [3]{-{b}^{2}a} \right ) \left ( i\sqrt{3}\sqrt [3]{-{b}^{2}a}+2\,bx+\sqrt [3]{-{b}^{2}a} \right ) \left ( i\sqrt{3}\sqrt [3]{-{b}^{2}a}-2\,bx-\sqrt [3]{-{b}^{2}a} \right ) }{{b}^{2}}}}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{\sqrt{\frac{b x^{3} + a}{x}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.1653, size = 236, normalized size = 7.38 \begin{align*} \left [\frac{\log \left (-8 \, b^{2} x^{6} - 8 \, a b x^{3} - a^{2} - 4 \,{\left (2 \, b x^{5} + a x^{2}\right )} \sqrt{b} \sqrt{\frac{b x^{3} + a}{x}}\right )}{6 \, \sqrt{b}}, -\frac{\sqrt{-b} \arctan \left (\frac{2 \, \sqrt{-b} x^{2} \sqrt{\frac{b x^{3} + a}{x}}}{2 \, b x^{3} + a}\right )}{3 \, b}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: TypeError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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