Optimal. Leaf size=82 \[ -\frac{3 \sqrt{b} \sqrt [4]{\frac{b x^4}{a}+1} E\left (\left .\frac{1}{2} \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )\right |2\right )}{2 a^{3/2} \sqrt [4]{a+b x^4}}-\frac{1}{2 a x^2 \sqrt [4]{a+b x^4}} \]
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Rubi [A] time = 0.0471722, antiderivative size = 82, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 15, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.267, Rules used = {275, 286, 197, 196} \[ -\frac{3 \sqrt{b} \sqrt [4]{\frac{b x^4}{a}+1} E\left (\left .\frac{1}{2} \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )\right |2\right )}{2 a^{3/2} \sqrt [4]{a+b x^4}}-\frac{1}{2 a x^2 \sqrt [4]{a+b x^4}} \]
Antiderivative was successfully verified.
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Rule 275
Rule 286
Rule 197
Rule 196
Rubi steps
\begin{align*} \int \frac{1}{x^3 \left (a+b x^4\right )^{5/4}} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{x^2 \left (a+b x^2\right )^{5/4}} \, dx,x,x^2\right )\\ &=-\frac{1}{2 a x^2 \sqrt [4]{a+b x^4}}-\frac{(3 b) \operatorname{Subst}\left (\int \frac{1}{\left (a+b x^2\right )^{5/4}} \, dx,x,x^2\right )}{4 a}\\ &=-\frac{1}{2 a x^2 \sqrt [4]{a+b x^4}}-\frac{\left (3 b \sqrt [4]{1+\frac{b x^4}{a}}\right ) \operatorname{Subst}\left (\int \frac{1}{\left (1+\frac{b x^2}{a}\right )^{5/4}} \, dx,x,x^2\right )}{4 a^2 \sqrt [4]{a+b x^4}}\\ &=-\frac{1}{2 a x^2 \sqrt [4]{a+b x^4}}-\frac{3 \sqrt{b} \sqrt [4]{1+\frac{b x^4}{a}} E\left (\left .\frac{1}{2} \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )\right |2\right )}{2 a^{3/2} \sqrt [4]{a+b x^4}}\\ \end{align*}
Mathematica [C] time = 0.0121392, size = 54, normalized size = 0.66 \[ -\frac{\sqrt [4]{\frac{b x^4}{a}+1} \, _2F_1\left (-\frac{1}{2},\frac{5}{4};\frac{1}{2};-\frac{b x^4}{a}\right )}{2 a x^2 \sqrt [4]{a+b x^4}} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.049, size = 0, normalized size = 0. \begin{align*} \int{\frac{1}{{x}^{3}} \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] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{{\left (b x^{4} + a\right )}^{\frac{5}{4}} x^{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{{\left (b x^{4} + a\right )}^{\frac{3}{4}}}{b^{2} x^{11} + 2 \, a b x^{7} + a^{2} x^{3}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] time = 1.65757, size = 31, normalized size = 0.38 \begin{align*} - \frac{{{}_{2}F_{1}\left (\begin{matrix} - \frac{1}{2}, \frac{5}{4} \\ \frac{1}{2} \end{matrix}\middle |{\frac{b x^{4} e^{i \pi }}{a}} \right )}}{2 a^{\frac{5}{4}} x^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{{\left (b x^{4} + a\right )}^{\frac{5}{4}} x^{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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