Optimal. Leaf size=80 \[ \frac{1}{3} \left (2 x+\sqrt{2 x-1}\right )^{3/2}-\frac{1}{8} \left (2 \sqrt{2 x-1}+1\right ) \sqrt{2 x+\sqrt{2 x-1}}-\frac{3}{16} \sinh ^{-1}\left (\frac{2 \sqrt{2 x-1}+1}{\sqrt{3}}\right ) \]
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Rubi [A] time = 0.0393168, antiderivative size = 80, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 4, integrand size = 17, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.235, Rules used = {640, 612, 619, 215} \[ \frac{1}{3} \left (2 x+\sqrt{2 x-1}\right )^{3/2}-\frac{1}{8} \left (2 \sqrt{2 x-1}+1\right ) \sqrt{2 x+\sqrt{2 x-1}}-\frac{3}{16} \sinh ^{-1}\left (\frac{2 \sqrt{2 x-1}+1}{\sqrt{3}}\right ) \]
Antiderivative was successfully verified.
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Rule 640
Rule 612
Rule 619
Rule 215
Rubi steps
\begin{align*} \int \sqrt{2 x+\sqrt{-1+2 x}} \, dx &=\operatorname{Subst}\left (\int x \sqrt{1+x+x^2} \, dx,x,\sqrt{-1+2 x}\right )\\ &=\frac{1}{3} \left (2 x+\sqrt{-1+2 x}\right )^{3/2}-\frac{1}{2} \operatorname{Subst}\left (\int \sqrt{1+x+x^2} \, dx,x,\sqrt{-1+2 x}\right )\\ &=\frac{1}{3} \left (2 x+\sqrt{-1+2 x}\right )^{3/2}-\frac{1}{8} \sqrt{2 x+\sqrt{-1+2 x}} \left (1+2 \sqrt{-1+2 x}\right )-\frac{3}{16} \operatorname{Subst}\left (\int \frac{1}{\sqrt{1+x+x^2}} \, dx,x,\sqrt{-1+2 x}\right )\\ &=\frac{1}{3} \left (2 x+\sqrt{-1+2 x}\right )^{3/2}-\frac{1}{8} \sqrt{2 x+\sqrt{-1+2 x}} \left (1+2 \sqrt{-1+2 x}\right )-\frac{1}{16} \sqrt{3} \operatorname{Subst}\left (\int \frac{1}{\sqrt{1+\frac{x^2}{3}}} \, dx,x,1+2 \sqrt{-1+2 x}\right )\\ &=\frac{1}{3} \left (2 x+\sqrt{-1+2 x}\right )^{3/2}-\frac{1}{8} \sqrt{2 x+\sqrt{-1+2 x}} \left (1+2 \sqrt{-1+2 x}\right )-\frac{3}{16} \sinh ^{-1}\left (\frac{1+2 \sqrt{-1+2 x}}{\sqrt{3}}\right )\\ \end{align*}
Mathematica [A] time = 0.0298329, size = 62, normalized size = 0.78 \[ \frac{1}{48} \left (2 \sqrt{2 x+\sqrt{2 x-1}} \left (16 x+2 \sqrt{2 x-1}-3\right )-9 \sinh ^{-1}\left (\frac{2 \sqrt{2 x-1}+1}{\sqrt{3}}\right )\right ) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.006, size = 60, normalized size = 0.8 \begin{align*}{\frac{1}{3} \left ( 2\,x+\sqrt{2\,x-1} \right ) ^{{\frac{3}{2}}}}-{\frac{1}{8} \left ( 1+2\,\sqrt{2\,x-1} \right ) \sqrt{2\,x+\sqrt{2\,x-1}}}-{\frac{3}{16}{\it Arcsinh} \left ({\frac{2\,\sqrt{3}}{3} \left ( \sqrt{2\,x-1}+{\frac{1}{2}} \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 \sqrt{2 \, x + \sqrt{2 \, x - 1}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 4.11253, size = 207, normalized size = 2.59 \begin{align*} \frac{1}{24} \,{\left (16 \, x + 2 \, \sqrt{2 \, x - 1} - 3\right )} \sqrt{2 \, x + \sqrt{2 \, x - 1}} + \frac{3}{32} \, \log \left (-4 \, \sqrt{2 \, x + \sqrt{2 \, x - 1}}{\left (2 \, \sqrt{2 \, x - 1} + 1\right )} + 16 \, x + 8 \, \sqrt{2 \, x - 1} - 3\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 \sqrt{2 x + \sqrt{2 x - 1}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.23049, size = 92, normalized size = 1.15 \begin{align*} \frac{1}{24} \,{\left (2 \, \sqrt{2 \, x - 1}{\left (4 \, \sqrt{2 \, x - 1} + 1\right )} + 5\right )} \sqrt{2 \, x + \sqrt{2 \, x - 1}} + \frac{3}{16} \, \log \left (2 \, \sqrt{2 \, x + \sqrt{2 \, x - 1}} - 2 \, \sqrt{2 \, x - 1} - 1\right ) - \frac{5}{24} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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