Integrand size = 23, antiderivative size = 95 \[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=-\frac {b n}{e x}-\frac {a+b \log \left (c x^n\right )}{e x}-\frac {d \left (a+b \log \left (c x^n\right )\right )^2}{2 b e^2 n}+\frac {d \left (a+b \log \left (c x^n\right )\right ) \log \left (1+\frac {d x}{e}\right )}{e^2}+\frac {b d n \operatorname {PolyLog}\left (2,-\frac {d x}{e}\right )}{e^2} \]
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Time = 0.10 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.304, Rules used = {269, 46, 2393, 2341, 2338, 2354, 2438} \[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=-\frac {d \left (a+b \log \left (c x^n\right )\right )^2}{2 b e^2 n}+\frac {d \log \left (\frac {d x}{e}+1\right ) \left (a+b \log \left (c x^n\right )\right )}{e^2}-\frac {a+b \log \left (c x^n\right )}{e x}+\frac {b d n \operatorname {PolyLog}\left (2,-\frac {d x}{e}\right )}{e^2}-\frac {b n}{e x} \]
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Rule 46
Rule 269
Rule 2338
Rule 2341
Rule 2354
Rule 2393
Rule 2438
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a+b \log \left (c x^n\right )}{e x^2}-\frac {d \left (a+b \log \left (c x^n\right )\right )}{e^2 x}+\frac {d^2 \left (a+b \log \left (c x^n\right )\right )}{e^2 (e+d x)}\right ) \, dx \\ & = -\frac {d \int \frac {a+b \log \left (c x^n\right )}{x} \, dx}{e^2}+\frac {d^2 \int \frac {a+b \log \left (c x^n\right )}{e+d x} \, dx}{e^2}+\frac {\int \frac {a+b \log \left (c x^n\right )}{x^2} \, dx}{e} \\ & = -\frac {b n}{e x}-\frac {a+b \log \left (c x^n\right )}{e x}-\frac {d \left (a+b \log \left (c x^n\right )\right )^2}{2 b e^2 n}+\frac {d \left (a+b \log \left (c x^n\right )\right ) \log \left (1+\frac {d x}{e}\right )}{e^2}-\frac {(b d n) \int \frac {\log \left (1+\frac {d x}{e}\right )}{x} \, dx}{e^2} \\ & = -\frac {b n}{e x}-\frac {a+b \log \left (c x^n\right )}{e x}-\frac {d \left (a+b \log \left (c x^n\right )\right )^2}{2 b e^2 n}+\frac {d \left (a+b \log \left (c x^n\right )\right ) \log \left (1+\frac {d x}{e}\right )}{e^2}+\frac {b d n \text {Li}_2\left (-\frac {d x}{e}\right )}{e^2} \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 88, normalized size of antiderivative = 0.93 \[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=-\frac {\frac {2 b e n}{x}+\frac {2 e \left (a+b \log \left (c x^n\right )\right )}{x}+\frac {d \left (a+b \log \left (c x^n\right )\right )^2}{b n}-2 d \left (a+b \log \left (c x^n\right )\right ) \log \left (1+\frac {d x}{e}\right )-2 b d n \operatorname {PolyLog}\left (2,-\frac {d x}{e}\right )}{2 e^2} \]
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.13 (sec) , antiderivative size = 221, normalized size of antiderivative = 2.33
method | result | size |
risch | \(\frac {b \ln \left (x^{n}\right ) d \ln \left (d x +e \right )}{e^{2}}-\frac {b \ln \left (x^{n}\right )}{e x}-\frac {b \ln \left (x^{n}\right ) d \ln \left (x \right )}{e^{2}}-\frac {b n d \ln \left (d x +e \right ) \ln \left (-\frac {d x}{e}\right )}{e^{2}}-\frac {b n d \operatorname {dilog}\left (-\frac {d x}{e}\right )}{e^{2}}-\frac {b n}{e x}+\frac {b n d \ln \left (x \right )^{2}}{2 e^{2}}+\left (-\frac {i b \pi \,\operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i x^{n}\right ) \operatorname {csgn}\left (i c \,x^{n}\right )}{2}+\frac {i b \pi \,\operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i c \,x^{n}\right )^{2}}{2}+\frac {i b \pi \,\operatorname {csgn}\left (i x^{n}\right ) \operatorname {csgn}\left (i c \,x^{n}\right )^{2}}{2}-\frac {i b \pi \operatorname {csgn}\left (i c \,x^{n}\right )^{3}}{2}+b \ln \left (c \right )+a \right ) \left (\frac {d \ln \left (d x +e \right )}{e^{2}}-\frac {1}{e x}-\frac {d \ln \left (x \right )}{e^{2}}\right )\) | \(221\) |
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\[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=\int { \frac {b \log \left (c x^{n}\right ) + a}{{\left (d + \frac {e}{x}\right )} x^{3}} \,d x } \]
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Time = 37.15 (sec) , antiderivative size = 216, normalized size of antiderivative = 2.27 \[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=\frac {a d^{2} \left (\begin {cases} \frac {x}{e} & \text {for}\: d = 0 \\\frac {\log {\left (d x + e \right )}}{d} & \text {otherwise} \end {cases}\right )}{e^{2}} - \frac {a d \log {\left (x \right )}}{e^{2}} - \frac {a}{e x} - \frac {b d^{2} n \left (\begin {cases} \frac {x}{e} & \text {for}\: d = 0 \\\frac {\begin {cases} - \operatorname {Li}_{2}\left (\frac {d x e^{i \pi }}{e}\right ) & \text {for}\: \frac {1}{\left |{x}\right |} < 1 \wedge \left |{x}\right | < 1 \\\log {\left (e \right )} \log {\left (x \right )} - \operatorname {Li}_{2}\left (\frac {d x e^{i \pi }}{e}\right ) & \text {for}\: \left |{x}\right | < 1 \\- \log {\left (e \right )} \log {\left (\frac {1}{x} \right )} - \operatorname {Li}_{2}\left (\frac {d x e^{i \pi }}{e}\right ) & \text {for}\: \frac {1}{\left |{x}\right |} < 1 \\- {G_{2, 2}^{2, 0}\left (\begin {matrix} & 1, 1 \\0, 0 & \end {matrix} \middle | {x} \right )} \log {\left (e \right )} + {G_{2, 2}^{0, 2}\left (\begin {matrix} 1, 1 & \\ & 0, 0 \end {matrix} \middle | {x} \right )} \log {\left (e \right )} - \operatorname {Li}_{2}\left (\frac {d x e^{i \pi }}{e}\right ) & \text {otherwise} \end {cases}}{d} & \text {otherwise} \end {cases}\right )}{e^{2}} + \frac {b d^{2} \left (\begin {cases} \frac {x}{e} & \text {for}\: d = 0 \\\frac {\log {\left (d x + e \right )}}{d} & \text {otherwise} \end {cases}\right ) \log {\left (c x^{n} \right )}}{e^{2}} + \frac {b d n \log {\left (x \right )}^{2}}{2 e^{2}} - \frac {b d \log {\left (x \right )} \log {\left (c x^{n} \right )}}{e^{2}} - \frac {b n}{e x} - \frac {b \log {\left (c x^{n} \right )}}{e x} \]
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\[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=\int { \frac {b \log \left (c x^{n}\right ) + a}{{\left (d + \frac {e}{x}\right )} x^{3}} \,d x } \]
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\[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=\int { \frac {b \log \left (c x^{n}\right ) + a}{{\left (d + \frac {e}{x}\right )} x^{3}} \,d x } \]
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Timed out. \[ \int \frac {a+b \log \left (c x^n\right )}{\left (d+\frac {e}{x}\right ) x^3} \, dx=\int \frac {a+b\,\ln \left (c\,x^n\right )}{x^3\,\left (d+\frac {e}{x}\right )} \,d x \]
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