Integrand size = 16, antiderivative size = 38 \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=\frac {b p \log (x)}{a}-\frac {\left (a+b x^2\right ) \log \left (c \left (a+b x^2\right )^p\right )}{2 a x^2} \]
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Time = 0.03 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.18, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.312, Rules used = {2504, 2442, 36, 29, 31} \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=-\frac {\log \left (c \left (a+b x^2\right )^p\right )}{2 x^2}-\frac {b p \log \left (a+b x^2\right )}{2 a}+\frac {b p \log (x)}{a} \]
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Rule 29
Rule 31
Rule 36
Rule 2442
Rule 2504
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int \frac {\log \left (c (a+b x)^p\right )}{x^2} \, dx,x,x^2\right ) \\ & = -\frac {\log \left (c \left (a+b x^2\right )^p\right )}{2 x^2}+\frac {1}{2} (b p) \text {Subst}\left (\int \frac {1}{x (a+b x)} \, dx,x,x^2\right ) \\ & = -\frac {\log \left (c \left (a+b x^2\right )^p\right )}{2 x^2}+\frac {(b p) \text {Subst}\left (\int \frac {1}{x} \, dx,x,x^2\right )}{2 a}-\frac {\left (b^2 p\right ) \text {Subst}\left (\int \frac {1}{a+b x} \, dx,x,x^2\right )}{2 a} \\ & = \frac {b p \log (x)}{a}-\frac {b p \log \left (a+b x^2\right )}{2 a}-\frac {\log \left (c \left (a+b x^2\right )^p\right )}{2 x^2} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.18 \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=\frac {b p \log (x)}{a}-\frac {b p \log \left (a+b x^2\right )}{2 a}-\frac {\log \left (c \left (a+b x^2\right )^p\right )}{2 x^2} \]
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Time = 0.25 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.11
method | result | size |
parts | \(-\frac {\ln \left (c \left (b \,x^{2}+a \right )^{p}\right )}{2 x^{2}}+p b \left (\frac {\ln \left (x \right )}{a}-\frac {\ln \left (b \,x^{2}+a \right )}{2 a}\right )\) | \(42\) |
parallelrisch | \(\frac {2 p^{2} b \ln \left (x \right ) x^{2}-x^{2} \ln \left (c \left (b \,x^{2}+a \right )^{p}\right ) b p -\ln \left (c \left (b \,x^{2}+a \right )^{p}\right ) a p}{2 x^{2} a p}\) | \(59\) |
risch | \(-\frac {\ln \left (\left (b \,x^{2}+a \right )^{p}\right )}{2 x^{2}}-\frac {i \pi a \,\operatorname {csgn}\left (i \left (b \,x^{2}+a \right )^{p}\right ) {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{2}-i \pi a \,\operatorname {csgn}\left (i \left (b \,x^{2}+a \right )^{p}\right ) \operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right ) \operatorname {csgn}\left (i c \right )-i \pi a {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{3}+i \pi a {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{2} \operatorname {csgn}\left (i c \right )-4 b p \ln \left (x \right ) x^{2}+2 p b \ln \left (b \,x^{2}+a \right ) x^{2}+2 \ln \left (c \right ) a}{4 x^{2} a}\) | \(173\) |
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Time = 0.30 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.13 \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=\frac {2 \, b p x^{2} \log \left (x\right ) - {\left (b p x^{2} + a p\right )} \log \left (b x^{2} + a\right ) - a \log \left (c\right )}{2 \, a x^{2}} \]
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Time = 0.90 (sec) , antiderivative size = 65, normalized size of antiderivative = 1.71 \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=\begin {cases} - \frac {\log {\left (c \left (a + b x^{2}\right )^{p} \right )}}{2 x^{2}} + \frac {b p \log {\left (x \right )}}{a} - \frac {b \log {\left (c \left (a + b x^{2}\right )^{p} \right )}}{2 a} & \text {for}\: a \neq 0 \\- \frac {p}{2 x^{2}} - \frac {\log {\left (c \left (b x^{2}\right )^{p} \right )}}{2 x^{2}} & \text {otherwise} \end {cases} \]
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Time = 0.19 (sec) , antiderivative size = 44, normalized size of antiderivative = 1.16 \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=-\frac {1}{2} \, b p {\left (\frac {\log \left (b x^{2} + a\right )}{a} - \frac {\log \left (x^{2}\right )}{a}\right )} - \frac {\log \left ({\left (b x^{2} + a\right )}^{p} c\right )}{2 \, x^{2}} \]
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Time = 0.30 (sec) , antiderivative size = 58, normalized size of antiderivative = 1.53 \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=-\frac {\frac {b^{2} p \log \left (b x^{2} + a\right )}{a} - \frac {b^{2} p \log \left (b x^{2}\right )}{a} + \frac {b p \log \left (b x^{2} + a\right )}{x^{2}} + \frac {b \log \left (c\right )}{x^{2}}}{2 \, b} \]
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Time = 1.25 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.08 \[ \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^3} \, dx=\frac {b\,p\,\ln \left (x\right )}{a}-\frac {b\,p\,\ln \left (b\,x^2+a\right )}{2\,a}-\frac {\ln \left (c\,{\left (b\,x^2+a\right )}^p\right )}{2\,x^2} \]
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