Optimal. Leaf size=23 \[ \frac {\log (a+b \log (c (e+f x)))}{b d f} \]
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Rubi [A] time = 0.07, antiderivative size = 23, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.160, Rules used = {2390, 12, 2302, 29} \[ \frac {\log (a+b \log (c (e+f x)))}{b d f} \]
Antiderivative was successfully verified.
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Rule 12
Rule 29
Rule 2302
Rule 2390
Rubi steps
\begin {align*} \int \frac {1}{(d e+d f x) (a+b \log (c (e+f x)))} \, dx &=\frac {\operatorname {Subst}\left (\int \frac {1}{d x (a+b \log (c x))} \, dx,x,e+f x\right )}{f}\\ &=\frac {\operatorname {Subst}\left (\int \frac {1}{x (a+b \log (c x))} \, dx,x,e+f x\right )}{d f}\\ &=\frac {\operatorname {Subst}\left (\int \frac {1}{x} \, dx,x,a+b \log (c (e+f x))\right )}{b d f}\\ &=\frac {\log (a+b \log (c (e+f x)))}{b d f}\\ \end {align*}
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Mathematica [A] time = 0.02, size = 23, normalized size = 1.00 \[ \frac {\log (a+b \log (c (e+f x)))}{b d f} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.44, size = 24, normalized size = 1.04 \[ \frac {\log \left (b \log \left (c f x + c e\right ) + a\right )}{b d f} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.18, size = 25, normalized size = 1.09 \[ \frac {\log \left (b \log \left (c f x + c e\right ) + a\right )}{b d f} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.05, size = 25, normalized size = 1.09 \[ \frac {\ln \left (b \ln \left (c f x +c e \right )+a \right )}{b d f} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.47, size = 29, normalized size = 1.26 \[ \frac {\log \left (\frac {b \log \left (f x + e\right ) + b \log \relax (c) + a}{b}\right )}{b d f} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.85, size = 23, normalized size = 1.00 \[ \frac {\ln \left (a+b\,\ln \left (c\,\left (e+f\,x\right )\right )\right )}{b\,d\,f} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.22, size = 17, normalized size = 0.74 \[ \frac {\log {\left (\frac {a}{b} + \log {\left (c \left (e + f x\right ) \right )} \right )}}{b d f} \]
Verification of antiderivative is not currently implemented for this CAS.
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