Integrand size = 58, antiderivative size = 14 \[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=\log \left (2+\frac {1}{\log \left (x+\log \left (\frac {4}{x}\right )\right )}\right ) \]
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Time = 0.23 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.93, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.086, Rules used = {6873, 6824, 36, 29, 31} \[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=\log \left (2 \log \left (x+\log \left (\frac {4}{x}\right )\right )+1\right )-\log \left (\log \left (x+\log \left (\frac {4}{x}\right )\right )\right ) \]
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Rule 29
Rule 31
Rule 36
Rule 6824
Rule 6873
Rubi steps \begin{align*} \text {integral}& = \int \frac {1-x}{x \left (x+\log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right ) \left (1+2 \log \left (x+\log \left (\frac {4}{x}\right )\right )\right )} \, dx \\ & = -\text {Subst}\left (\int \frac {1}{x (1+2 x)} \, dx,x,\log \left (x+\log \left (\frac {4}{x}\right )\right )\right ) \\ & = 2 \text {Subst}\left (\int \frac {1}{1+2 x} \, dx,x,\log \left (x+\log \left (\frac {4}{x}\right )\right )\right )-\text {Subst}\left (\int \frac {1}{x} \, dx,x,\log \left (x+\log \left (\frac {4}{x}\right )\right )\right ) \\ & = -\log \left (\log \left (x+\log \left (\frac {4}{x}\right )\right )\right )+\log \left (1+2 \log \left (x+\log \left (\frac {4}{x}\right )\right )\right ) \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.93 \[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=-\log \left (\log \left (x+\log \left (\frac {4}{x}\right )\right )\right )+\log \left (1+2 \log \left (x+\log \left (\frac {4}{x}\right )\right )\right ) \]
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Time = 1.15 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.86
method | result | size |
parallelrisch | \(-\ln \left (\ln \left (\ln \left (\frac {4}{x}\right )+x \right )\right )+\ln \left (\ln \left (\ln \left (\frac {4}{x}\right )+x \right )+\frac {1}{2}\right )\) | \(26\) |
default | \(\ln \left (2 \ln \left (\left (\frac {2 \ln \left (2\right )}{x}+\frac {\ln \left (\frac {1}{x}\right )}{x}+1\right ) x \right )+1\right )-\ln \left (\ln \left (\left (\frac {2 \ln \left (2\right )}{x}+\frac {\ln \left (\frac {1}{x}\right )}{x}+1\right ) x \right )\right )\) | \(50\) |
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Time = 0.25 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.93 \[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=\log \left (2 \, \log \left (x + \log \left (\frac {4}{x}\right )\right ) + 1\right ) - \log \left (\log \left (x + \log \left (\frac {4}{x}\right )\right )\right ) \]
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Exception generated. \[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=\text {Exception raised: PolynomialError} \]
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Leaf count of result is larger than twice the leaf count of optimal. 29 vs. \(2 (14) = 28\).
Time = 0.32 (sec) , antiderivative size = 29, normalized size of antiderivative = 2.07 \[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=\log \left (\log \left (x + 2 \, \log \left (2\right ) - \log \left (x\right )\right ) + \frac {1}{2}\right ) - \log \left (\log \left (x + 2 \, \log \left (2\right ) - \log \left (x\right )\right )\right ) \]
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\[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=\int { -\frac {x - 1}{2 \, {\left (x^{2} + x \log \left (\frac {4}{x}\right )\right )} \log \left (x + \log \left (\frac {4}{x}\right )\right )^{2} + {\left (x^{2} + x \log \left (\frac {4}{x}\right )\right )} \log \left (x + \log \left (\frac {4}{x}\right )\right )} \,d x } \]
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Time = 14.05 (sec) , antiderivative size = 71, normalized size of antiderivative = 5.07 \[ \int \frac {1-x}{\left (x^2+x \log \left (\frac {4}{x}\right )\right ) \log \left (x+\log \left (\frac {4}{x}\right )\right )+\left (2 x^2+2 x \log \left (\frac {4}{x}\right )\right ) \log ^2\left (x+\log \left (\frac {4}{x}\right )\right )} \, dx=\ln \left (\frac {\left (2\,\ln \left (x+\ln \left (\frac {4}{x}\right )\right )+1\right )\,\left (x-1\right )}{\ln \left (2^{2\,x}\right )+x\,\ln \left (\frac {1}{x}\right )+x^2}\right )-\ln \left (\frac {\ln \left (x+\ln \left (\frac {4}{x}\right )\right )\,\left (x-1\right )}{\ln \left (2^{2\,x}\right )+x\,\ln \left (\frac {1}{x}\right )+x^2}\right ) \]
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