Integrand size = 10, antiderivative size = 24 \[ \int \log \left (c (a+b x)^p\right ) \, dx=-p x+\frac {(a+b x) \log \left (c (a+b x)^p\right )}{b} \]
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Time = 0.01 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {2436, 2332} \[ \int \log \left (c (a+b x)^p\right ) \, dx=\frac {(a+b x) \log \left (c (a+b x)^p\right )}{b}-p x \]
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Rule 2332
Rule 2436
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \log \left (c x^p\right ) \, dx,x,a+b x\right )}{b} \\ & = -p x+\frac {(a+b x) \log \left (c (a+b x)^p\right )}{b} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.00 \[ \int \log \left (c (a+b x)^p\right ) \, dx=-p x+\frac {(a+b x) \log \left (c (a+b x)^p\right )}{b} \]
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Time = 0.32 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.33
method | result | size |
norman | \(x \ln \left (c \,{\mathrm e}^{p \ln \left (b x +a \right )}\right )+\frac {p a \ln \left (b x +a \right )}{b}-p x\) | \(32\) |
default | \(\ln \left (c \left (b x +a \right )^{p}\right ) x -p b \left (\frac {x}{b}-\frac {a \ln \left (b x +a \right )}{b^{2}}\right )\) | \(36\) |
parts | \(\ln \left (c \left (b x +a \right )^{p}\right ) x -p b \left (\frac {x}{b}-\frac {a \ln \left (b x +a \right )}{b^{2}}\right )\) | \(36\) |
parallelrisch | \(\frac {x \ln \left (c \left (b x +a \right )^{p}\right ) a b p -a b \,p^{2} x +\ln \left (c \left (b x +a \right )^{p}\right ) a^{2} p}{a b p}\) | \(50\) |
risch | \(x \ln \left (\left (b x +a \right )^{p}\right )+\frac {i \pi x \,\operatorname {csgn}\left (i \left (b x +a \right )^{p}\right ) \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right )^{2}}{2}-\frac {i \pi x \,\operatorname {csgn}\left (i \left (b x +a \right )^{p}\right ) \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right ) \operatorname {csgn}\left (i c \right )}{2}-\frac {i \pi x \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right )^{3}}{2}+\frac {i \pi x \operatorname {csgn}\left (i c \left (b x +a \right )^{p}\right )^{2} \operatorname {csgn}\left (i c \right )}{2}+\frac {p a \ln \left (b x +a \right )}{b}+x \ln \left (c \right )-p x\) | \(138\) |
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Time = 0.33 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.33 \[ \int \log \left (c (a+b x)^p\right ) \, dx=-\frac {b p x - b x \log \left (c\right ) - {\left (b p x + a p\right )} \log \left (b x + a\right )}{b} \]
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Time = 0.14 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.50 \[ \int \log \left (c (a+b x)^p\right ) \, dx=\begin {cases} \frac {a \log {\left (c \left (a + b x\right )^{p} \right )}}{b} - p x + x \log {\left (c \left (a + b x\right )^{p} \right )} & \text {for}\: b \neq 0 \\x \log {\left (a^{p} c \right )} & \text {otherwise} \end {cases} \]
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Time = 0.19 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.46 \[ \int \log \left (c (a+b x)^p\right ) \, dx=-b p {\left (\frac {x}{b} - \frac {a \log \left (b x + a\right )}{b^{2}}\right )} + x \log \left ({\left (b x + a\right )}^{p} c\right ) \]
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Time = 0.30 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.62 \[ \int \log \left (c (a+b x)^p\right ) \, dx=\frac {{\left (b x + a\right )} p \log \left (b x + a\right )}{b} - \frac {{\left (b x + a\right )} p}{b} + \frac {{\left (b x + a\right )} \log \left (c\right )}{b} \]
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Time = 0.08 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.21 \[ \int \log \left (c (a+b x)^p\right ) \, dx=x\,\ln \left (c\,{\left (a+b\,x\right )}^p\right )-p\,x+\frac {a\,p\,\ln \left (a+b\,x\right )}{b} \]
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