Optimal. Leaf size=51 \[ \frac{\sqrt{5 x^2+2} \text{EllipticF}\left (\tan ^{-1}(x),-\frac{3}{2}\right )}{\sqrt{2} \sqrt{x^2+1} \sqrt{\frac{5 x^2+2}{x^2+1}}} \]
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Rubi [A] time = 0.0094425, antiderivative size = 51, normalized size of antiderivative = 1., number of steps used = 1, number of rules used = 1, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.048, Rules used = {418} \[ \frac{\sqrt{5 x^2+2} F\left (\tan ^{-1}(x)|-\frac{3}{2}\right )}{\sqrt{2} \sqrt{x^2+1} \sqrt{\frac{5 x^2+2}{x^2+1}}} \]
Antiderivative was successfully verified.
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Rule 418
Rubi steps
\begin{align*} \int \frac{1}{\sqrt{1+x^2} \sqrt{2+5 x^2}} \, dx &=\frac{\sqrt{2+5 x^2} F\left (\tan ^{-1}(x)|-\frac{3}{2}\right )}{\sqrt{2} \sqrt{1+x^2} \sqrt{\frac{2+5 x^2}{1+x^2}}}\\ \end{align*}
Mathematica [C] time = 0.0203425, size = 19, normalized size = 0.37 \[ -\frac{i \text{EllipticF}\left (i \sinh ^{-1}(x),\frac{5}{2}\right )}{\sqrt{2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.032, size = 17, normalized size = 0.3 \begin{align*} -{\frac{i}{2}}{\it EllipticF} \left ( ix,{\frac{\sqrt{10}}{2}} \right ) \sqrt{2} \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{5 \, x^{2} + 2} \sqrt{x^{2} + 1}}\,{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{5 \, x^{2} + 2} \sqrt{x^{2} + 1}}{5 \, x^{4} + 7 \, 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{1}{\sqrt{x^{2} + 1} \sqrt{5 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{1}{\sqrt{5 \, x^{2} + 2} \sqrt{x^{2} + 1}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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