Optimal. Leaf size=51 \[ -\frac {x}{2}-\frac {1}{2} \sqrt {2 x-x^2}+\frac {1}{2} \tanh ^{-1}\left (\sqrt {2 x-x^2}\right )-\frac {1}{2} \log (1-x) \]
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Rubi [A]
time = 0.10, antiderivative size = 51, normalized size of antiderivative = 1.00, number of steps
used = 9, number of rules used = 7, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.280, Rules used = {6820, 2140,
6874, 45, 699, 702, 213} \begin {gather*} -\frac {1}{2} \sqrt {2 x-x^2}+\frac {1}{2} \tanh ^{-1}\left (\sqrt {2 x-x^2}\right )-\frac {x}{2}-\frac {1}{2} \log (1-x) \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 213
Rule 699
Rule 702
Rule 2140
Rule 6820
Rule 6874
Rubi steps
\begin {align*} \int \frac {\sqrt {2-x} \sqrt {x}+x}{2-2 x} \, dx &=\int \frac {x+\sqrt {-(-2+x) x}}{2-2 x} \, dx\\ &=\int \frac {x+\sqrt {2 x-x^2}}{2-2 x} \, dx\\ &=\int \left (-\frac {x}{2 (-1+x)}+\frac {\sqrt {2 x-x^2}}{2 (1-x)}\right ) \, dx\\ &=-\left (\frac {1}{2} \int \frac {x}{-1+x} \, dx\right )+\frac {1}{2} \int \frac {\sqrt {2 x-x^2}}{1-x} \, dx\\ &=-\frac {1}{2} \sqrt {2 x-x^2}-\frac {1}{2} \int \left (1+\frac {1}{-1+x}\right ) \, dx+\frac {1}{2} \int \frac {1}{(1-x) \sqrt {2 x-x^2}} \, dx\\ &=-\frac {x}{2}-\frac {1}{2} \sqrt {2 x-x^2}-\frac {1}{2} \log (1-x)-2 \text {Subst}\left (\int \frac {1}{-4+4 x^2} \, dx,x,\sqrt {2 x-x^2}\right )\\ &=-\frac {x}{2}-\frac {1}{2} \sqrt {2 x-x^2}+\frac {1}{2} \tanh ^{-1}\left (\sqrt {2 x-x^2}\right )-\frac {1}{2} \log (1-x)\\ \end {align*}
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Mathematica [C] Result contains complex when optimal does not.
time = 0.00, size = 45, normalized size = 0.88 \begin {gather*} \frac {1}{2} \left (i \pi -x-\sqrt {-((-2+x) x)}+\log (-2+x)-2 \log \left (-2+x+\sqrt {-((-2+x) x)}\right )\right ) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.25, size = 51, normalized size = 1.00
method | result | size |
default | \(-\frac {\sqrt {2-x}\, \sqrt {x}\, \left (\sqrt {-x \left (x -2\right )}-\arctanh \left (\frac {1}{\sqrt {-x \left (x -2\right )}}\right )\right )}{2 \sqrt {-x \left (x -2\right )}}-\frac {x}{2}-\frac {\ln \left (-1+x \right )}{2}\) | \(51\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.50, size = 54, normalized size = 1.06 \begin {gather*} -\frac {1}{2} \, x - \frac {1}{2} \, \sqrt {-x^{2} + 2 \, x} - \frac {1}{2} \, \log \left (x - 1\right ) + \frac {1}{2} \, \log \left (\frac {2 \, \sqrt {-x^{2} + 2 \, x}}{{\left | x - 1 \right |}} + \frac {2}{{\left | x - 1 \right |}}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.33, size = 64, normalized size = 1.25 \begin {gather*} -\frac {1}{2} \, x - \frac {1}{2} \, \sqrt {x} \sqrt {-x + 2} - \frac {1}{2} \, \log \left (x - 1\right ) + \frac {1}{2} \, \log \left (\frac {x + \sqrt {x} \sqrt {-x + 2}}{x}\right ) - \frac {1}{2} \, \log \left (-\frac {x - \sqrt {x} \sqrt {-x + 2}}{x}\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*} - \frac {\int \frac {x}{x - 1}\, dx + \int \frac {\sqrt {x} \sqrt {2 - x}}{x - 1}\, dx}{2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: NotImplementedError} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 4.78, size = 56, normalized size = 1.10 \begin {gather*} \mathrm {atanh}\left (\frac {\sqrt {x}\,\left (\sqrt {2}-\sqrt {2-x}\right )}{x+\sqrt {2}\,\sqrt {2-x}-2}\right )-\frac {\ln \left (x-1\right )}{2}-\frac {x}{2}-\frac {\sqrt {x}\,\sqrt {2-x}}{2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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