Integrand size = 18, antiderivative size = 58 \[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\frac {\log \left (c (a+b x)^p\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{e}+\frac {p \operatorname {PolyLog}\left (2,-\frac {e (a+b x)}{b d-a e}\right )}{e} \]
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Time = 0.03 (sec) , antiderivative size = 58, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {2441, 2440, 2438} \[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\frac {\log \left (c (a+b x)^p\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{e}+\frac {p \operatorname {PolyLog}\left (2,-\frac {e (a+b x)}{b d-a e}\right )}{e} \]
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Rule 2438
Rule 2440
Rule 2441
Rubi steps \begin{align*} \text {integral}& = \frac {\log \left (c (a+b x)^p\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{e}-\frac {(b p) \int \frac {\log \left (\frac {b (d+e x)}{b d-a e}\right )}{a+b x} \, dx}{e} \\ & = \frac {\log \left (c (a+b x)^p\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{e}-\frac {p \text {Subst}\left (\int \frac {\log \left (1+\frac {e x}{b d-a e}\right )}{x} \, dx,x,a+b x\right )}{e} \\ & = \frac {\log \left (c (a+b x)^p\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{e}+\frac {p \text {Li}_2\left (-\frac {e (a+b x)}{b d-a e}\right )}{e} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 57, normalized size of antiderivative = 0.98 \[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\frac {\log \left (c (a+b x)^p\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{e}+\frac {p \operatorname {PolyLog}\left (2,\frac {e (a+b x)}{-b d+a e}\right )}{e} \]
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Time = 1.68 (sec) , antiderivative size = 98, normalized size of antiderivative = 1.69
method | result | size |
parts | \(\frac {\ln \left (c \left (b x +a \right )^{p}\right ) \ln \left (e x +d \right )}{e}-\frac {p b \left (\frac {\operatorname {dilog}\left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{b}+\frac {\ln \left (e x +d \right ) \ln \left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{b}\right )}{e}\) | \(98\) |
risch | \(\frac {\ln \left (\left (b x +a \right )^{p}\right ) \ln \left (e x +d \right )}{e}-\frac {p \operatorname {dilog}\left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{e}-\frac {p \ln \left (e x +d \right ) \ln \left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{e}+\frac {\left (\frac {i \pi \,\operatorname {csgn}\left (i \left (b x +a \right )^{p}\right ) \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right )^{2}}{2}-\frac {i \pi \,\operatorname {csgn}\left (i \left (b x +a \right )^{p}\right ) \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right ) \operatorname {csgn}\left (i c \right )}{2}-\frac {i \pi \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right )^{3}}{2}+\frac {i \pi \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right )^{2} \operatorname {csgn}\left (i c \right )}{2}+\ln \left (c \right )\right ) \ln \left (e x +d \right )}{e}\) | \(207\) |
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\[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\int { \frac {\log \left ({\left (b x + a\right )}^{p} c\right )}{e x + d} \,d x } \]
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\[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\int \frac {\log {\left (c \left (a + b x\right )^{p} \right )}}{d + e x}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 118 vs. \(2 (57) = 114\).
Time = 0.20 (sec) , antiderivative size = 118, normalized size of antiderivative = 2.03 \[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\frac {b p {\left (\frac {\log \left (b x + a\right ) \log \left (e x + d\right )}{b} - \frac {\log \left (e x + d\right ) \log \left (-\frac {b e x + b d}{b d - a e} + 1\right ) + {\rm Li}_2\left (\frac {b e x + b d}{b d - a e}\right )}{b}\right )}}{e} - \frac {p \log \left (b x + a\right ) \log \left (e x + d\right )}{e} + \frac {\log \left ({\left (b x + a\right )}^{p} c\right ) \log \left (e x + d\right )}{e} \]
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\[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\int { \frac {\log \left ({\left (b x + a\right )}^{p} c\right )}{e x + d} \,d x } \]
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Timed out. \[ \int \frac {\log \left (c (a+b x)^p\right )}{d+e x} \, dx=\int \frac {\ln \left (c\,{\left (a+b\,x\right )}^p\right )}{d+e\,x} \,d x \]
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