Integrand size = 23, antiderivative size = 83 \[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=-\frac {b n}{4 d x^2}-\frac {a+b \log \left (c x^n\right )}{2 d x^2}+\frac {e \log \left (1+\frac {d}{e x^2}\right ) \left (a+b \log \left (c x^n\right )\right )}{2 d^2}-\frac {b e n \operatorname {PolyLog}\left (2,-\frac {d}{e x^2}\right )}{4 d^2} \]
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Time = 0.10 (sec) , antiderivative size = 83, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.174, Rules used = {2380, 2341, 2379, 2438} \[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=\frac {e \log \left (\frac {d}{e x^2}+1\right ) \left (a+b \log \left (c x^n\right )\right )}{2 d^2}-\frac {a+b \log \left (c x^n\right )}{2 d x^2}-\frac {b e n \operatorname {PolyLog}\left (2,-\frac {d}{e x^2}\right )}{4 d^2}-\frac {b n}{4 d x^2} \]
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Rule 2341
Rule 2379
Rule 2380
Rule 2438
Rubi steps \begin{align*} \text {integral}& = \frac {\int \frac {a+b \log \left (c x^n\right )}{x^3} \, dx}{d}-\frac {e \int \frac {a+b \log \left (c x^n\right )}{x \left (d+e x^2\right )} \, dx}{d} \\ & = -\frac {b n}{4 d x^2}-\frac {a+b \log \left (c x^n\right )}{2 d x^2}+\frac {e \log \left (1+\frac {d}{e x^2}\right ) \left (a+b \log \left (c x^n\right )\right )}{2 d^2}-\frac {(b e n) \int \frac {\log \left (1+\frac {d}{e x^2}\right )}{x} \, dx}{2 d^2} \\ & = -\frac {b n}{4 d x^2}-\frac {a+b \log \left (c x^n\right )}{2 d x^2}+\frac {e \log \left (1+\frac {d}{e x^2}\right ) \left (a+b \log \left (c x^n\right )\right )}{2 d^2}-\frac {b e n \text {Li}_2\left (-\frac {d}{e x^2}\right )}{4 d^2} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 157, normalized size of antiderivative = 1.89 \[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=\frac {-\frac {b d n}{x^2}-\frac {2 d \left (a+b \log \left (c x^n\right )\right )}{x^2}-\frac {2 e \left (a+b \log \left (c x^n\right )\right )^2}{b n}+2 e \left (a+b \log \left (c x^n\right )\right ) \log \left (1+\frac {\sqrt {e} x}{\sqrt {-d}}\right )+2 e \left (a+b \log \left (c x^n\right )\right ) \log \left (1+\frac {d \sqrt {e} x}{(-d)^{3/2}}\right )+2 b e n \operatorname {PolyLog}\left (2,\frac {\sqrt {e} x}{\sqrt {-d}}\right )+2 b e n \operatorname {PolyLog}\left (2,\frac {d \sqrt {e} x}{(-d)^{3/2}}\right )}{4 d^2} \]
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.49 (sec) , antiderivative size = 317, normalized size of antiderivative = 3.82
method | result | size |
risch | \(\frac {b \ln \left (x^{n}\right ) e \ln \left (e \,x^{2}+d \right )}{2 d^{2}}-\frac {b \ln \left (x^{n}\right )}{2 d \,x^{2}}-\frac {b \ln \left (x^{n}\right ) e \ln \left (x \right )}{d^{2}}-\frac {b n e \ln \left (x \right ) \ln \left (e \,x^{2}+d \right )}{2 d^{2}}+\frac {b n e \ln \left (x \right ) \ln \left (\frac {-e x +\sqrt {-d e}}{\sqrt {-d e}}\right )}{2 d^{2}}+\frac {b n e \ln \left (x \right ) \ln \left (\frac {e x +\sqrt {-d e}}{\sqrt {-d e}}\right )}{2 d^{2}}+\frac {b n e \operatorname {dilog}\left (\frac {-e x +\sqrt {-d e}}{\sqrt {-d e}}\right )}{2 d^{2}}+\frac {b n e \operatorname {dilog}\left (\frac {e x +\sqrt {-d e}}{\sqrt {-d e}}\right )}{2 d^{2}}-\frac {b n}{4 d \,x^{2}}+\frac {b n e \ln \left (x \right )^{2}}{2 d^{2}}+\left (-\frac {i b \pi \,\operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i x^{n}\right ) \operatorname {csgn}\left (i c \,x^{n}\right )}{2}+\frac {i b \pi \,\operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i c \,x^{n}\right )^{2}}{2}+\frac {i b \pi \,\operatorname {csgn}\left (i x^{n}\right ) \operatorname {csgn}\left (i c \,x^{n}\right )^{2}}{2}-\frac {i b \pi \operatorname {csgn}\left (i c \,x^{n}\right )^{3}}{2}+b \ln \left (c \right )+a \right ) \left (\frac {e \ln \left (e \,x^{2}+d \right )}{2 d^{2}}-\frac {1}{2 d \,x^{2}}-\frac {e \ln \left (x \right )}{d^{2}}\right )\) | \(317\) |
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\[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=\int { \frac {b \log \left (c x^{n}\right ) + a}{{\left (e x^{2} + d\right )} x^{3}} \,d x } \]
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Timed out. \[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=\text {Timed out} \]
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\[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=\int { \frac {b \log \left (c x^{n}\right ) + a}{{\left (e x^{2} + d\right )} x^{3}} \,d x } \]
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\[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=\int { \frac {b \log \left (c x^{n}\right ) + a}{{\left (e x^{2} + d\right )} x^{3}} \,d x } \]
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Timed out. \[ \int \frac {a+b \log \left (c x^n\right )}{x^3 \left (d+e x^2\right )} \, dx=\int \frac {a+b\,\ln \left (c\,x^n\right )}{x^3\,\left (e\,x^2+d\right )} \,d x \]
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