Integrand size = 6, antiderivative size = 19 \[ \int \log ^2(c x) \, dx=2 x-2 x \log (c x)+x \log ^2(c x) \]
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Time = 0.00 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {2333, 2332} \[ \int \log ^2(c x) \, dx=x \log ^2(c x)-2 x \log (c x)+2 x \]
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Rule 2332
Rule 2333
Rubi steps \begin{align*} \text {integral}& = x \log ^2(c x)-2 \int \log (c x) \, dx \\ & = 2 x-2 x \log (c x)+x \log ^2(c x) \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00 \[ \int \log ^2(c x) \, dx=2 x-2 x \log (c x)+x \log ^2(c x) \]
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Time = 0.01 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.05
method | result | size |
norman | \(2 x -2 x \ln \left (x c \right )+x \ln \left (x c \right )^{2}\) | \(20\) |
risch | \(2 x -2 x \ln \left (x c \right )+x \ln \left (x c \right )^{2}\) | \(20\) |
parallelrisch | \(2 x -2 x \ln \left (x c \right )+x \ln \left (x c \right )^{2}\) | \(20\) |
derivativedivides | \(\frac {x c \ln \left (x c \right )^{2}-2 x c \ln \left (x c \right )+2 x c}{c}\) | \(27\) |
default | \(\frac {x c \ln \left (x c \right )^{2}-2 x c \ln \left (x c \right )+2 x c}{c}\) | \(27\) |
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none
Time = 0.31 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00 \[ \int \log ^2(c x) \, dx=x \log \left (c x\right )^{2} - 2 \, x \log \left (c x\right ) + 2 \, x \]
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Time = 0.04 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00 \[ \int \log ^2(c x) \, dx=x \log {\left (c x \right )}^{2} - 2 x \log {\left (c x \right )} + 2 x \]
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none
Time = 0.18 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.84 \[ \int \log ^2(c x) \, dx={\left (\log \left (c x\right )^{2} - 2 \, \log \left (c x\right ) + 2\right )} x \]
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Time = 0.30 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00 \[ \int \log ^2(c x) \, dx=x \log \left (c x\right )^{2} - 2 \, x \log \left (c x\right ) + 2 \, x \]
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Time = 0.25 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.84 \[ \int \log ^2(c x) \, dx=x\,\left ({\ln \left (c\,x\right )}^2-2\,\ln \left (c\,x\right )+2\right ) \]
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