Optimal. Leaf size=18 \[ \text{EllipticF}\left (\sin ^{-1}\left (\frac{\sqrt{x+1}}{\sqrt{3}}\right ),\frac{3}{4}\right ) \]
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Rubi [A] time = 0.0058277, antiderivative size = 18, normalized size of antiderivative = 1., number of steps used = 1, number of rules used = 1, integrand size = 26, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.038, Rules used = {119} \[ F\left (\sin ^{-1}\left (\frac{\sqrt{x+1}}{\sqrt{3}}\right )|\frac{3}{4}\right ) \]
Antiderivative was successfully verified.
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Rule 119
Rubi steps
\begin{align*} \int \frac{1}{\sqrt{2-x} \sqrt{3-x} \sqrt{1+x}} \, dx &=F\left (\sin ^{-1}\left (\frac{\sqrt{1+x}}{\sqrt{3}}\right )|\frac{3}{4}\right )\\ \end{align*}
Mathematica [C] time = 0.0846531, size = 65, normalized size = 3.61 \[ -\frac{2 i \sqrt{1-\frac{3}{2-x}} \sqrt{\frac{1}{2-x}+1} (2-x) \text{EllipticF}\left (i \sinh ^{-1}\left (\frac{1}{\sqrt{2-x}}\right ),-3\right )}{\sqrt{-(x-3) (x+1)}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.035, size = 19, normalized size = 1.1 \begin{align*}{\frac{2\,\sqrt{3}}{3}{\it EllipticF} \left ({\frac{1}{2}\sqrt{1+x}},{\frac{2\,\sqrt{3}}{3}} \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{1}{\sqrt{x + 1} \sqrt{-x + 3} \sqrt{-x + 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 + 1} \sqrt{-x + 3} \sqrt{-x + 2}}{x^{3} - 4 \, x^{2} + x + 6}, 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{1}{\sqrt{2 - x} \sqrt{3 - x} \sqrt{x + 1}}\, 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{1}{\sqrt{x + 1} \sqrt{-x + 3} \sqrt{-x + 2}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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