Integrand size = 64, antiderivative size = 20 \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108 x}{x+x \left (8+\log ^2(\log (1-x))\right )} \]
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Time = 0.08 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.75, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.047, Rules used = {12, 6820, 6818} \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108}{\log ^2(\log (1-x))+9} \]
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Rule 12
Rule 6818
Rule 6820
Rubi steps \begin{align*} \text {integral}& = -\left (216 \int \frac {\log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx\right ) \\ & = -\left (216 \int \frac {\log (\log (1-x))}{(-1+x) \log (1-x) \left (9+\log ^2(\log (1-x))\right )^2} \, dx\right ) \\ & = \frac {108}{9+\log ^2(\log (1-x))} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.75 \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108}{9+\log ^2(\log (1-x))} \]
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Time = 0.38 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.80
method | result | size |
default | \(\frac {108}{\ln \left (\ln \left (1-x \right )\right )^{2}+9}\) | \(16\) |
risch | \(\frac {108}{\ln \left (\ln \left (1-x \right )\right )^{2}+9}\) | \(16\) |
parallelrisch | \(\frac {108}{\ln \left (\ln \left (1-x \right )\right )^{2}+9}\) | \(16\) |
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Time = 0.23 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.75 \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108}{\log \left (\log \left (-x + 1\right )\right )^{2} + 9} \]
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Time = 0.06 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.50 \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108}{\log {\left (\log {\left (1 - x \right )} \right )}^{2} + 9} \]
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Time = 0.24 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.75 \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108}{\log \left (\log \left (-x + 1\right )\right )^{2} + 9} \]
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Time = 0.34 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.75 \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108}{\log \left (\log \left (-x + 1\right )\right )^{2} + 9} \]
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Time = 13.84 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.75 \[ \int -\frac {216 \log (\log (1-x))}{(-81+81 x) \log (1-x)+(-18+18 x) \log (1-x) \log ^2(\log (1-x))+(-1+x) \log (1-x) \log ^4(\log (1-x))} \, dx=\frac {108}{{\ln \left (\ln \left (1-x\right )\right )}^2+9} \]
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