Integrand size = 22, antiderivative size = 17 \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=\log (x)-\log \left (5 e^{2 x} \log (2 x)\right ) \]
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Time = 0.05 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.136, Rules used = {6820, 2339, 29} \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=-2 x+\log (x)-\log (\log (2 x)) \]
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Rule 29
Rule 2339
Rule 6820
Rubi steps \begin{align*} \text {integral}& = \int \left (-2+\frac {1}{x}-\frac {1}{x \log (2 x)}\right ) \, dx \\ & = -2 x+\log (x)-\int \frac {1}{x \log (2 x)} \, dx \\ & = -2 x+\log (x)-\text {Subst}\left (\int \frac {1}{x} \, dx,x,\log (2 x)\right ) \\ & = -2 x+\log (x)-\log (\log (2 x)) \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=-2 x+\log (x)-\log (\log (2 x)) \]
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Time = 0.13 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82
method | result | size |
risch | \(\ln \left (x \right )-2 x -\ln \left (\ln \left (2 x \right )\right )\) | \(14\) |
parts | \(\ln \left (x \right )-2 x -\ln \left (\ln \left (2 x \right )\right )\) | \(14\) |
derivativedivides | \(-2 x +\ln \left (2 x \right )-\ln \left (\ln \left (2 x \right )\right )\) | \(16\) |
default | \(-2 x +\ln \left (2 x \right )-\ln \left (\ln \left (2 x \right )\right )\) | \(16\) |
norman | \(-2 x +\ln \left (2 x \right )-\ln \left (\ln \left (2 x \right )\right )\) | \(16\) |
parallelrisch | \(-2 x +\ln \left (2 x \right )-\ln \left (\ln \left (2 x \right )\right )\) | \(16\) |
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Time = 0.25 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88 \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=-2 \, x + \log \left (2 \, x\right ) - \log \left (\log \left (2 \, x\right )\right ) \]
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Time = 0.05 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.71 \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=- 2 x + \log {\left (x \right )} - \log {\left (\log {\left (2 x \right )} \right )} \]
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Time = 0.21 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=-2 \, x + \log \left (x\right ) - \log \left (\log \left (2 \, x\right )\right ) \]
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Time = 0.34 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=-2 \, x + \log \left (x\right ) - \log \left (\log \left (2 \, x\right )\right ) \]
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Time = 11.95 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76 \[ \int \frac {-1+(1-2 x) \log (2 x)}{x \log (2 x)} \, dx=\ln \left (x\right )-\ln \left (\ln \left (2\,x\right )\right )-2\,x \]
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