Optimal. Leaf size=78 \[ \frac{2 a^{3/2} \left (1-\frac{b x^2}{a}\right )^{3/4} \text{EllipticF}\left (\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right ),2\right )}{3 \sqrt{b} \left (a-b x^2\right )^{3/4}}+\frac{2}{3} x \sqrt [4]{a-b x^2} \]
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Rubi [A] time = 0.0178637, antiderivative size = 78, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 12, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {195, 233, 232} \[ \frac{2 a^{3/2} \left (1-\frac{b x^2}{a}\right )^{3/4} F\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )\right |2\right )}{3 \sqrt{b} \left (a-b x^2\right )^{3/4}}+\frac{2}{3} x \sqrt [4]{a-b x^2} \]
Antiderivative was successfully verified.
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Rule 195
Rule 233
Rule 232
Rubi steps
\begin{align*} \int \sqrt [4]{a-b x^2} \, dx &=\frac{2}{3} x \sqrt [4]{a-b x^2}+\frac{1}{3} a \int \frac{1}{\left (a-b x^2\right )^{3/4}} \, dx\\ &=\frac{2}{3} x \sqrt [4]{a-b x^2}+\frac{\left (a \left (1-\frac{b x^2}{a}\right )^{3/4}\right ) \int \frac{1}{\left (1-\frac{b x^2}{a}\right )^{3/4}} \, dx}{3 \left (a-b x^2\right )^{3/4}}\\ &=\frac{2}{3} x \sqrt [4]{a-b x^2}+\frac{2 a^{3/2} \left (1-\frac{b x^2}{a}\right )^{3/4} F\left (\left .\frac{1}{2} \sin ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )\right |2\right )}{3 \sqrt{b} \left (a-b x^2\right )^{3/4}}\\ \end{align*}
Mathematica [C] time = 0.0066705, size = 47, normalized size = 0.6 \[ \frac{x \sqrt [4]{a-b x^2} \, _2F_1\left (-\frac{1}{4},\frac{1}{2};\frac{3}{2};\frac{b x^2}{a}\right )}{\sqrt [4]{1-\frac{b x^2}{a}}} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.027, size = 0, normalized size = 0. \begin{align*} \int \sqrt [4]{-b{x}^{2}+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{\left (-b x^{2} + 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 ({\left (-b x^{2} + a\right )}^{\frac{1}{4}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] time = 0.727895, size = 27, normalized size = 0.35 \begin{align*} \sqrt [4]{a} x{{}_{2}F_{1}\left (\begin{matrix} - \frac{1}{4}, \frac{1}{2} \\ \frac{3}{2} \end{matrix}\middle |{\frac{b x^{2} e^{2 i \pi }}{a}} \right )} \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{\left (-b x^{2} + a\right )}^{\frac{1}{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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