Optimal. Leaf size=57 \[ -\frac{\tan ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )}{2 a^{3/4}}-\frac{\tanh ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )}{2 a^{3/4}} \]
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Rubi [A] time = 0.0325523, antiderivative size = 57, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.312, Rules used = {266, 63, 212, 206, 203} \[ -\frac{\tan ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )}{2 a^{3/4}}-\frac{\tanh ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )}{2 a^{3/4}} \]
Antiderivative was successfully verified.
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Rule 266
Rule 63
Rule 212
Rule 206
Rule 203
Rubi steps
\begin{align*} \int \frac{1}{x \left (a-b x^4\right )^{3/4}} \, dx &=\frac{1}{4} \operatorname{Subst}\left (\int \frac{1}{x (a-b x)^{3/4}} \, dx,x,x^4\right )\\ &=-\frac{\operatorname{Subst}\left (\int \frac{1}{\frac{a}{b}-\frac{x^4}{b}} \, dx,x,\sqrt [4]{a-b x^4}\right )}{b}\\ &=-\frac{\operatorname{Subst}\left (\int \frac{1}{\sqrt{a}-x^2} \, dx,x,\sqrt [4]{a-b x^4}\right )}{2 \sqrt{a}}-\frac{\operatorname{Subst}\left (\int \frac{1}{\sqrt{a}+x^2} \, dx,x,\sqrt [4]{a-b x^4}\right )}{2 \sqrt{a}}\\ &=-\frac{\tan ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )}{2 a^{3/4}}-\frac{\tanh ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )}{2 a^{3/4}}\\ \end{align*}
Mathematica [A] time = 0.0085477, size = 48, normalized size = 0.84 \[ -\frac{\tan ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )+\tanh ^{-1}\left (\frac{\sqrt [4]{a-b x^4}}{\sqrt [4]{a}}\right )}{2 a^{3/4}} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.025, size = 0, normalized size = 0. \begin{align*} \int{\frac{1}{x} \left ( -b{x}^{4}+a \right ) ^{-{\frac{3}{4}}}}\, dx \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 [B] time = 1.91594, size = 343, normalized size = 6.02 \begin{align*} \frac{1}{a^{3}}^{\frac{1}{4}} \arctan \left (\sqrt{a^{2} \sqrt{\frac{1}{a^{3}}} + \sqrt{-b x^{4} + a}} a^{2} \frac{1}{a^{3}}^{\frac{3}{4}} -{\left (-b x^{4} + a\right )}^{\frac{1}{4}} a^{2} \frac{1}{a^{3}}^{\frac{3}{4}}\right ) - \frac{1}{4} \, \frac{1}{a^{3}}^{\frac{1}{4}} \log \left (a \frac{1}{a^{3}}^{\frac{1}{4}} +{\left (-b x^{4} + a\right )}^{\frac{1}{4}}\right ) + \frac{1}{4} \, \frac{1}{a^{3}}^{\frac{1}{4}} \log \left (-a \frac{1}{a^{3}}^{\frac{1}{4}} +{\left (-b x^{4} + a\right )}^{\frac{1}{4}}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] time = 1.53821, size = 42, normalized size = 0.74 \begin{align*} - \frac{e^{- \frac{3 i \pi }{4}} \Gamma \left (\frac{3}{4}\right ){{}_{2}F_{1}\left (\begin{matrix} \frac{3}{4}, \frac{3}{4} \\ \frac{7}{4} \end{matrix}\middle |{\frac{a}{b x^{4}}} \right )}}{4 b^{\frac{3}{4}} x^{3} \Gamma \left (\frac{7}{4}\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.17391, size = 259, normalized size = 4.54 \begin{align*} -\frac{\sqrt{2} \left (-a\right )^{\frac{1}{4}} \arctan \left (\frac{\sqrt{2}{\left (\sqrt{2} \left (-a\right )^{\frac{1}{4}} + 2 \,{\left (-b x^{4} + a\right )}^{\frac{1}{4}}\right )}}{2 \, \left (-a\right )^{\frac{1}{4}}}\right )}{4 \, a} - \frac{\sqrt{2} \left (-a\right )^{\frac{1}{4}} \arctan \left (-\frac{\sqrt{2}{\left (\sqrt{2} \left (-a\right )^{\frac{1}{4}} - 2 \,{\left (-b x^{4} + a\right )}^{\frac{1}{4}}\right )}}{2 \, \left (-a\right )^{\frac{1}{4}}}\right )}{4 \, a} - \frac{\sqrt{2} \left (-a\right )^{\frac{1}{4}} \log \left (\sqrt{2}{\left (-b x^{4} + a\right )}^{\frac{1}{4}} \left (-a\right )^{\frac{1}{4}} + \sqrt{-b x^{4} + a} + \sqrt{-a}\right )}{8 \, a} + \frac{\sqrt{2} \left (-a\right )^{\frac{1}{4}} \log \left (-\sqrt{2}{\left (-b x^{4} + a\right )}^{\frac{1}{4}} \left (-a\right )^{\frac{1}{4}} + \sqrt{-b x^{4} + a} + \sqrt{-a}\right )}{8 \, a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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