Optimal. Leaf size=35 \[ \frac{7}{3} \sqrt{2} \text{EllipticF}\left (\sin ^{-1}\left (\frac{x}{2}\right ),-6\right )-\frac{1}{3} \sqrt{2} E\left (\left .\sin ^{-1}\left (\frac{x}{2}\right )\right |-6\right ) \]
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Rubi [A] time = 0.0205367, antiderivative size = 35, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 23, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.13, Rules used = {423, 424, 419} \[ \frac{7}{3} \sqrt{2} F\left (\left .\sin ^{-1}\left (\frac{x}{2}\right )\right |-6\right )-\frac{1}{3} \sqrt{2} E\left (\left .\sin ^{-1}\left (\frac{x}{2}\right )\right |-6\right ) \]
Antiderivative was successfully verified.
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Rule 423
Rule 424
Rule 419
Rubi steps
\begin{align*} \int \frac{\sqrt{4-x^2}}{\sqrt{2+3 x^2}} \, dx &=-\left (\frac{1}{3} \int \frac{\sqrt{2+3 x^2}}{\sqrt{4-x^2}} \, dx\right )+\frac{14}{3} \int \frac{1}{\sqrt{4-x^2} \sqrt{2+3 x^2}} \, dx\\ &=-\frac{1}{3} \sqrt{2} E\left (\left .\sin ^{-1}\left (\frac{x}{2}\right )\right |-6\right )+\frac{7}{3} \sqrt{2} F\left (\left .\sin ^{-1}\left (\frac{x}{2}\right )\right |-6\right )\\ \end{align*}
Mathematica [C] time = 0.0044379, size = 27, normalized size = 0.77 \[ -\frac{2 i E\left (i \sinh ^{-1}\left (\sqrt{\frac{3}{2}} x\right )|-\frac{1}{6}\right )}{\sqrt{3}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.023, size = 31, normalized size = 0.9 \begin{align*}{\frac{\sqrt{2}}{3} \left ( 7\,{\it EllipticF} \left ( x/2,i\sqrt{6} \right ) -{\it EllipticE} \left ({\frac{x}{2}},i\sqrt{6} \right ) \right ) } \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{\sqrt{-x^{2} + 4}}{\sqrt{3 \, x^{2} + 2}}\,{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{\sqrt{-x^{2} + 4}}{\sqrt{3 \, x^{2} + 2}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\sqrt{- \left (x - 2\right ) \left (x + 2\right )}}{\sqrt{3 x^{2} + 2}}\, dx \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{\sqrt{-x^{2} + 4}}{\sqrt{3 \, x^{2} + 2}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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