Optimal. Leaf size=70 \[ \frac{\tan ^{-1}\left (\frac{\sqrt [4]{a+b x^4}}{\sqrt [4]{a}}\right )}{2 a^{5/4}}-\frac{\tanh ^{-1}\left (\frac{\sqrt [4]{a+b x^4}}{\sqrt [4]{a}}\right )}{2 a^{5/4}}+\frac{1}{a \sqrt [4]{a+b x^4}} \]
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Rubi [A] time = 0.0443256, antiderivative size = 70, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 15, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.4, Rules used = {266, 51, 63, 298, 203, 206} \[ \frac{\tan ^{-1}\left (\frac{\sqrt [4]{a+b x^4}}{\sqrt [4]{a}}\right )}{2 a^{5/4}}-\frac{\tanh ^{-1}\left (\frac{\sqrt [4]{a+b x^4}}{\sqrt [4]{a}}\right )}{2 a^{5/4}}+\frac{1}{a \sqrt [4]{a+b x^4}} \]
Antiderivative was successfully verified.
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Rule 266
Rule 51
Rule 63
Rule 298
Rule 203
Rule 206
Rubi steps
\begin{align*} \int \frac{1}{x \left (a+b x^4\right )^{5/4}} \, dx &=\frac{1}{4} \operatorname{Subst}\left (\int \frac{1}{x (a+b x)^{5/4}} \, dx,x,x^4\right )\\ &=\frac{1}{a \sqrt [4]{a+b x^4}}+\frac{\operatorname{Subst}\left (\int \frac{1}{x \sqrt [4]{a+b x}} \, dx,x,x^4\right )}{4 a}\\ &=\frac{1}{a \sqrt [4]{a+b x^4}}+\frac{\operatorname{Subst}\left (\int \frac{x^2}{-\frac{a}{b}+\frac{x^4}{b}} \, dx,x,\sqrt [4]{a+b x^4}\right )}{a b}\\ &=\frac{1}{a \sqrt [4]{a+b x^4}}-\frac{\operatorname{Subst}\left (\int \frac{1}{\sqrt{a}-x^2} \, dx,x,\sqrt [4]{a+b x^4}\right )}{2 a}+\frac{\operatorname{Subst}\left (\int \frac{1}{\sqrt{a}+x^2} \, dx,x,\sqrt [4]{a+b x^4}\right )}{2 a}\\ &=\frac{1}{a \sqrt [4]{a+b x^4}}+\frac{\tan ^{-1}\left (\frac{\sqrt [4]{a+b x^4}}{\sqrt [4]{a}}\right )}{2 a^{5/4}}-\frac{\tanh ^{-1}\left (\frac{\sqrt [4]{a+b x^4}}{\sqrt [4]{a}}\right )}{2 a^{5/4}}\\ \end{align*}
Mathematica [C] time = 0.0064257, size = 33, normalized size = 0.47 \[ \frac{\, _2F_1\left (-\frac{1}{4},1;\frac{3}{4};\frac{b x^4}{a}+1\right )}{a \sqrt [4]{a+b x^4}} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.029, size = 0, normalized size = 0. \begin{align*} \int{\frac{1}{x} \left ( b{x}^{4}+a \right ) ^{-{\frac{5}{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 = 1.64399, size = 455, normalized size = 6.5 \begin{align*} -\frac{4 \,{\left (a b x^{4} + a^{2}\right )} \frac{1}{a^{5}}^{\frac{1}{4}} \arctan \left (\sqrt{a^{3} \sqrt{\frac{1}{a^{5}}} + \sqrt{b x^{4} + a}} a \frac{1}{a^{5}}^{\frac{1}{4}} -{\left (b x^{4} + a\right )}^{\frac{1}{4}} a \frac{1}{a^{5}}^{\frac{1}{4}}\right ) +{\left (a b x^{4} + a^{2}\right )} \frac{1}{a^{5}}^{\frac{1}{4}} \log \left (a^{4} \frac{1}{a^{5}}^{\frac{3}{4}} +{\left (b x^{4} + a\right )}^{\frac{1}{4}}\right ) -{\left (a b x^{4} + a^{2}\right )} \frac{1}{a^{5}}^{\frac{1}{4}} \log \left (-a^{4} \frac{1}{a^{5}}^{\frac{3}{4}} +{\left (b x^{4} + a\right )}^{\frac{1}{4}}\right ) - 4 \,{\left (b x^{4} + a\right )}^{\frac{3}{4}}}{4 \,{\left (a b x^{4} + a^{2}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] time = 1.20153, size = 39, normalized size = 0.56 \begin{align*} - \frac{\Gamma \left (\frac{5}{4}\right ){{}_{2}F_{1}\left (\begin{matrix} \frac{5}{4}, \frac{5}{4} \\ \frac{9}{4} \end{matrix}\middle |{\frac{a e^{i \pi }}{b x^{4}}} \right )}}{4 b^{\frac{5}{4}} x^{5} \Gamma \left (\frac{9}{4}\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.12763, size = 269, normalized size = 3.84 \begin{align*} -\frac{\sqrt{2} \left (-a\right )^{\frac{3}{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^{2}} - \frac{\sqrt{2} \left (-a\right )^{\frac{3}{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^{2}} + \frac{\sqrt{2} \left (-a\right )^{\frac{3}{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^{2}} - \frac{\sqrt{2} \left (-a\right )^{\frac{3}{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^{2}} + \frac{1}{{\left (b x^{4} + a\right )}^{\frac{1}{4}} a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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