Optimal. Leaf size=68 \[ -\frac {1}{4} \left (1+2 \sqrt {-1+x}\right ) \sqrt {\sqrt {-1+x}+x}+\frac {2}{3} \left (\sqrt {-1+x}+x\right )^{3/2}-\frac {3}{8} \sinh ^{-1}\left (\frac {1+2 \sqrt {-1+x}}{\sqrt {3}}\right ) \]
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Rubi [A]
time = 0.03, antiderivative size = 68, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 4, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.308, Rules used = {654, 626, 633,
221} \begin {gather*} \frac {2}{3} \left (x+\sqrt {x-1}\right )^{3/2}-\frac {1}{4} \left (2 \sqrt {x-1}+1\right ) \sqrt {x+\sqrt {x-1}}-\frac {3}{8} \sinh ^{-1}\left (\frac {2 \sqrt {x-1}+1}{\sqrt {3}}\right ) \end {gather*}
Antiderivative was successfully verified.
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Rule 221
Rule 626
Rule 633
Rule 654
Rubi steps
\begin {align*} \int \sqrt {\sqrt {-1+x}+x} \, dx &=2 \text {Subst}\left (\int x \sqrt {1+x+x^2} \, dx,x,\sqrt {-1+x}\right )\\ &=\frac {2}{3} \left (\sqrt {-1+x}+x\right )^{3/2}-\text {Subst}\left (\int \sqrt {1+x+x^2} \, dx,x,\sqrt {-1+x}\right )\\ &=-\frac {1}{4} \left (1+2 \sqrt {-1+x}\right ) \sqrt {\sqrt {-1+x}+x}+\frac {2}{3} \left (\sqrt {-1+x}+x\right )^{3/2}-\frac {3}{8} \text {Subst}\left (\int \frac {1}{\sqrt {1+x+x^2}} \, dx,x,\sqrt {-1+x}\right )\\ &=-\frac {1}{4} \left (1+2 \sqrt {-1+x}\right ) \sqrt {\sqrt {-1+x}+x}+\frac {2}{3} \left (\sqrt {-1+x}+x\right )^{3/2}-\frac {1}{8} \sqrt {3} \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^2}{3}}} \, dx,x,1+2 \sqrt {-1+x}\right )\\ &=-\frac {1}{4} \left (1+2 \sqrt {-1+x}\right ) \sqrt {\sqrt {-1+x}+x}+\frac {2}{3} \left (\sqrt {-1+x}+x\right )^{3/2}-\frac {3}{8} \sinh ^{-1}\left (\frac {1+2 \sqrt {-1+x}}{\sqrt {3}}\right )\\ \end {align*}
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Mathematica [A]
time = 0.08, size = 65, normalized size = 0.96 \begin {gather*} \frac {1}{12} \left (5+2 \sqrt {-1+x}+8 (-1+x)\right ) \sqrt {\sqrt {-1+x}+x}+\frac {3}{8} \log \left (-1-2 \sqrt {-1+x}+2 \sqrt {\sqrt {-1+x}+x}\right ) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.02, size = 48, normalized size = 0.71
method | result | size |
derivativedivides | \(\frac {2 \left (x +\sqrt {-1+x}\right )^{\frac {3}{2}}}{3}-\frac {\left (1+2 \sqrt {-1+x}\right ) \sqrt {x +\sqrt {-1+x}}}{4}-\frac {3 \arcsinh \left (\frac {2 \sqrt {3}\, \left (\sqrt {-1+x}+\frac {1}{2}\right )}{3}\right )}{8}\) | \(48\) |
default | \(\frac {2 \left (x +\sqrt {-1+x}\right )^{\frac {3}{2}}}{3}-\frac {\left (1+2 \sqrt {-1+x}\right ) \sqrt {x +\sqrt {-1+x}}}{4}-\frac {3 \arcsinh \left (\frac {2 \sqrt {3}\, \left (\sqrt {-1+x}+\frac {1}{2}\right )}{3}\right )}{8}\) | \(48\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.59, size = 59, normalized size = 0.87 \begin {gather*} \frac {1}{12} \, {\left (8 \, x + 2 \, \sqrt {x - 1} - 3\right )} \sqrt {x + \sqrt {x - 1}} + \frac {3}{16} \, \log \left (-4 \, \sqrt {x + \sqrt {x - 1}} {\left (2 \, \sqrt {x - 1} + 1\right )} + 8 \, x + 8 \, \sqrt {x - 1} - 3\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \sqrt {x + \sqrt {x - 1}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.51, size = 53, normalized size = 0.78 \begin {gather*} \frac {1}{12} \, {\left (2 \, \sqrt {x - 1} {\left (4 \, \sqrt {x - 1} + 1\right )} + 5\right )} \sqrt {x + \sqrt {x - 1}} + \frac {3}{8} \, \log \left (2 \, \sqrt {x + \sqrt {x - 1}} - 2 \, \sqrt {x - 1} - 1\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \sqrt {x+\sqrt {x-1}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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