Integrand size = 10, antiderivative size = 45 \[ \int x^3 \log ^3(c x) \, dx=-\frac {3 x^4}{128}+\frac {3}{32} x^4 \log (c x)-\frac {3}{16} x^4 \log ^2(c x)+\frac {1}{4} x^4 \log ^3(c x) \]
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Time = 0.02 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {2342, 2341} \[ \int x^3 \log ^3(c x) \, dx=\frac {1}{4} x^4 \log ^3(c x)-\frac {3}{16} x^4 \log ^2(c x)+\frac {3}{32} x^4 \log (c x)-\frac {3 x^4}{128} \]
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Rule 2341
Rule 2342
Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} x^4 \log ^3(c x)-\frac {3}{4} \int x^3 \log ^2(c x) \, dx \\ & = -\frac {3}{16} x^4 \log ^2(c x)+\frac {1}{4} x^4 \log ^3(c x)+\frac {3}{8} \int x^3 \log (c x) \, dx \\ & = -\frac {3 x^4}{128}+\frac {3}{32} x^4 \log (c x)-\frac {3}{16} x^4 \log ^2(c x)+\frac {1}{4} x^4 \log ^3(c x) \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00 \[ \int x^3 \log ^3(c x) \, dx=-\frac {3 x^4}{128}+\frac {3}{32} x^4 \log (c x)-\frac {3}{16} x^4 \log ^2(c x)+\frac {1}{4} x^4 \log ^3(c x) \]
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Time = 0.03 (sec) , antiderivative size = 38, normalized size of antiderivative = 0.84
method | result | size |
norman | \(-\frac {3 x^{4}}{128}+\frac {3 x^{4} \ln \left (x c \right )}{32}-\frac {3 x^{4} \ln \left (x c \right )^{2}}{16}+\frac {x^{4} \ln \left (x c \right )^{3}}{4}\) | \(38\) |
risch | \(-\frac {3 x^{4}}{128}+\frac {3 x^{4} \ln \left (x c \right )}{32}-\frac {3 x^{4} \ln \left (x c \right )^{2}}{16}+\frac {x^{4} \ln \left (x c \right )^{3}}{4}\) | \(38\) |
parallelrisch | \(-\frac {3 x^{4}}{128}+\frac {3 x^{4} \ln \left (x c \right )}{32}-\frac {3 x^{4} \ln \left (x c \right )^{2}}{16}+\frac {x^{4} \ln \left (x c \right )^{3}}{4}\) | \(38\) |
parts | \(\frac {x^{4} \ln \left (x c \right )^{3}}{4}-\frac {3 \left (\frac {x^{4} c^{4} \ln \left (x c \right )^{2}}{4}-\frac {x^{4} c^{4} \ln \left (x c \right )}{8}+\frac {x^{4} c^{4}}{32}\right )}{4 c^{4}}\) | \(53\) |
derivativedivides | \(\frac {\frac {x^{4} c^{4} \ln \left (x c \right )^{3}}{4}-\frac {3 x^{4} c^{4} \ln \left (x c \right )^{2}}{16}+\frac {3 x^{4} c^{4} \ln \left (x c \right )}{32}-\frac {3 x^{4} c^{4}}{128}}{c^{4}}\) | \(54\) |
default | \(\frac {\frac {x^{4} c^{4} \ln \left (x c \right )^{3}}{4}-\frac {3 x^{4} c^{4} \ln \left (x c \right )^{2}}{16}+\frac {3 x^{4} c^{4} \ln \left (x c \right )}{32}-\frac {3 x^{4} c^{4}}{128}}{c^{4}}\) | \(54\) |
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Time = 0.33 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.82 \[ \int x^3 \log ^3(c x) \, dx=\frac {1}{4} \, x^{4} \log \left (c x\right )^{3} - \frac {3}{16} \, x^{4} \log \left (c x\right )^{2} + \frac {3}{32} \, x^{4} \log \left (c x\right ) - \frac {3}{128} \, x^{4} \]
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Time = 0.06 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.93 \[ \int x^3 \log ^3(c x) \, dx=\frac {x^{4} \log {\left (c x \right )}^{3}}{4} - \frac {3 x^{4} \log {\left (c x \right )}^{2}}{16} + \frac {3 x^{4} \log {\left (c x \right )}}{32} - \frac {3 x^{4}}{128} \]
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Time = 0.19 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.64 \[ \int x^3 \log ^3(c x) \, dx=\frac {1}{128} \, {\left (32 \, \log \left (c x\right )^{3} - 24 \, \log \left (c x\right )^{2} + 12 \, \log \left (c x\right ) - 3\right )} x^{4} \]
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Time = 0.30 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.82 \[ \int x^3 \log ^3(c x) \, dx=\frac {1}{4} \, x^{4} \log \left (c x\right )^{3} - \frac {3}{16} \, x^{4} \log \left (c x\right )^{2} + \frac {3}{32} \, x^{4} \log \left (c x\right ) - \frac {3}{128} \, x^{4} \]
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Time = 0.31 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.64 \[ \int x^3 \log ^3(c x) \, dx=\frac {x^4\,\left (32\,{\ln \left (c\,x\right )}^3-24\,{\ln \left (c\,x\right )}^2+12\,\ln \left (c\,x\right )-3\right )}{128} \]
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