Optimal. Leaf size=133 \[ -\frac{4 a^2 x^2 \left (a-b x^4\right )^{3/4}}{39 b^3}+\frac{8 a^{7/2} \sqrt [4]{1-\frac{b x^4}{a}} E\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )\right |2\right )}{39 b^{7/2} \sqrt [4]{a-b x^4}}-\frac{10 a x^6 \left (a-b x^4\right )^{3/4}}{117 b^2}-\frac{x^{10} \left (a-b x^4\right )^{3/4}}{13 b} \]
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Rubi [A] time = 0.0846476, antiderivative size = 133, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 4, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {275, 321, 229, 228} \[ -\frac{4 a^2 x^2 \left (a-b x^4\right )^{3/4}}{39 b^3}+\frac{8 a^{7/2} \sqrt [4]{1-\frac{b x^4}{a}} E\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )\right |2\right )}{39 b^{7/2} \sqrt [4]{a-b x^4}}-\frac{10 a x^6 \left (a-b x^4\right )^{3/4}}{117 b^2}-\frac{x^{10} \left (a-b x^4\right )^{3/4}}{13 b} \]
Antiderivative was successfully verified.
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Rule 275
Rule 321
Rule 229
Rule 228
Rubi steps
\begin{align*} \int \frac{x^{13}}{\sqrt [4]{a-b x^4}} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{x^6}{\sqrt [4]{a-b x^2}} \, dx,x,x^2\right )\\ &=-\frac{x^{10} \left (a-b x^4\right )^{3/4}}{13 b}+\frac{(5 a) \operatorname{Subst}\left (\int \frac{x^4}{\sqrt [4]{a-b x^2}} \, dx,x,x^2\right )}{13 b}\\ &=-\frac{10 a x^6 \left (a-b x^4\right )^{3/4}}{117 b^2}-\frac{x^{10} \left (a-b x^4\right )^{3/4}}{13 b}+\frac{\left (10 a^2\right ) \operatorname{Subst}\left (\int \frac{x^2}{\sqrt [4]{a-b x^2}} \, dx,x,x^2\right )}{39 b^2}\\ &=-\frac{4 a^2 x^2 \left (a-b x^4\right )^{3/4}}{39 b^3}-\frac{10 a x^6 \left (a-b x^4\right )^{3/4}}{117 b^2}-\frac{x^{10} \left (a-b x^4\right )^{3/4}}{13 b}+\frac{\left (4 a^3\right ) \operatorname{Subst}\left (\int \frac{1}{\sqrt [4]{a-b x^2}} \, dx,x,x^2\right )}{39 b^3}\\ &=-\frac{4 a^2 x^2 \left (a-b x^4\right )^{3/4}}{39 b^3}-\frac{10 a x^6 \left (a-b x^4\right )^{3/4}}{117 b^2}-\frac{x^{10} \left (a-b x^4\right )^{3/4}}{13 b}+\frac{\left (4 a^3 \sqrt [4]{1-\frac{b x^4}{a}}\right ) \operatorname{Subst}\left (\int \frac{1}{\sqrt [4]{1-\frac{b x^2}{a}}} \, dx,x,x^2\right )}{39 b^3 \sqrt [4]{a-b x^4}}\\ &=-\frac{4 a^2 x^2 \left (a-b x^4\right )^{3/4}}{39 b^3}-\frac{10 a x^6 \left (a-b x^4\right )^{3/4}}{117 b^2}-\frac{x^{10} \left (a-b x^4\right )^{3/4}}{13 b}+\frac{8 a^{7/2} \sqrt [4]{1-\frac{b x^4}{a}} E\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )\right |2\right )}{39 b^{7/2} \sqrt [4]{a-b x^4}}\\ \end{align*}
Mathematica [C] time = 0.0313156, size = 91, normalized size = 0.68 \[ \frac{x^2 \left (12 a^3 \sqrt [4]{1-\frac{b x^4}{a}} \, _2F_1\left (\frac{1}{4},\frac{1}{2};\frac{3}{2};\frac{b x^4}{a}\right )+2 a^2 b x^4-12 a^3+a b^2 x^8+9 b^3 x^{12}\right )}{117 b^3 \sqrt [4]{a-b x^4}} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.032, size = 0, normalized size = 0. \begin{align*} \int{{x}^{13}{\frac{1}{\sqrt [4]{-b{x}^{4}+a}}}}\, 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{x^{13}}{{\left (-b x^{4} + a\right )}^{\frac{1}{4}}}\,{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}} x^{13}}{b x^{4} - a}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] time = 2.93064, size = 29, normalized size = 0.22 \begin{align*} \frac{x^{14}{{}_{2}F_{1}\left (\begin{matrix} \frac{1}{4}, \frac{7}{2} \\ \frac{9}{2} \end{matrix}\middle |{\frac{b x^{4} e^{2 i \pi }}{a}} \right )}}{14 \sqrt [4]{a}} \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{x^{13}}{{\left (-b x^{4} + a\right )}^{\frac{1}{4}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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