Optimal. Leaf size=162 \[ \frac{i b \text{PolyLog}\left (2,1-\frac{2 d (e+f x)}{(1-i (c+d x)) (-c f+d e+i f)}\right )}{2 f}-\frac{i b \text{PolyLog}\left (2,1-\frac{2}{1-i (c+d x)}\right )}{2 f}+\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2 d (e+f x)}{(1-i (c+d x)) (-c f+d e+i f)}\right )}{f}-\frac{\log \left (\frac{2}{1-i (c+d x)}\right ) \left (a+b \cot ^{-1}(c+d x)\right )}{f} \]
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Rubi [A] time = 0.148596, antiderivative size = 162, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.278, Rules used = {5048, 4857, 2402, 2315, 2447} \[ \frac{i b \text{PolyLog}\left (2,1-\frac{2 d (e+f x)}{(1-i (c+d x)) (-c f+d e+i f)}\right )}{2 f}-\frac{i b \text{PolyLog}\left (2,1-\frac{2}{1-i (c+d x)}\right )}{2 f}+\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2 d (e+f x)}{(1-i (c+d x)) (-c f+d e+i f)}\right )}{f}-\frac{\log \left (\frac{2}{1-i (c+d x)}\right ) \left (a+b \cot ^{-1}(c+d x)\right )}{f} \]
Antiderivative was successfully verified.
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Rule 5048
Rule 4857
Rule 2402
Rule 2315
Rule 2447
Rubi steps
\begin{align*} \int \frac{a+b \cot ^{-1}(c+d x)}{e+f x} \, dx &=\frac{\operatorname{Subst}\left (\int \frac{a+b \cot ^{-1}(x)}{\frac{d e-c f}{d}+\frac{f x}{d}} \, dx,x,c+d x\right )}{d}\\ &=-\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2}{1-i (c+d x)}\right )}{f}+\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{f}-\frac{b \operatorname{Subst}\left (\int \frac{\log \left (\frac{2}{1-i x}\right )}{1+x^2} \, dx,x,c+d x\right )}{f}+\frac{b \operatorname{Subst}\left (\int \frac{\log \left (\frac{2 \left (\frac{d e-c f}{d}+\frac{f x}{d}\right )}{\left (\frac{i f}{d}+\frac{d e-c f}{d}\right ) (1-i x)}\right )}{1+x^2} \, dx,x,c+d x\right )}{f}\\ &=-\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2}{1-i (c+d x)}\right )}{f}+\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{f}+\frac{i b \text{Li}_2\left (1-\frac{2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{2 f}-\frac{(i b) \operatorname{Subst}\left (\int \frac{\log (2 x)}{1-2 x} \, dx,x,\frac{1}{1-i (c+d x)}\right )}{f}\\ &=-\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2}{1-i (c+d x)}\right )}{f}+\frac{\left (a+b \cot ^{-1}(c+d x)\right ) \log \left (\frac{2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{f}-\frac{i b \text{Li}_2\left (1-\frac{2}{1-i (c+d x)}\right )}{2 f}+\frac{i b \text{Li}_2\left (1-\frac{2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{2 f}\\ \end{align*}
Mathematica [A] time = 0.0945604, size = 304, normalized size = 1.88 \[ -\frac{i b \text{PolyLog}\left (2,\frac{f (c+d x)-c f+d e}{d e+(-c+i) f}\right )}{2 f}+\frac{i b \text{PolyLog}\left (2,\frac{f (c+d x)-c f+d e}{d e-(c+i) f}\right )}{2 f}+\frac{a \log (f (c+d x)-c f+d e)}{f}-\frac{i b \log \left (\frac{f (-c-d x+i)}{d e+(-c+i) f}\right ) \log (f (c+d x)-c f+d e)}{2 f}+\frac{i b \log \left (-\frac{-c-d x+i}{c+d x}\right ) \log (f (c+d x)-c f+d e)}{2 f}+\frac{i b \log \left (-\frac{f (c+d x+i)}{d e-(c+i) f}\right ) \log (f (c+d x)-c f+d e)}{2 f}-\frac{i b \log \left (\frac{c+d x+i}{c+d x}\right ) \log (f (c+d x)-c f+d e)}{2 f} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.06, size = 224, normalized size = 1.4 \begin{align*}{\frac{a\ln \left ( f \left ( dx+c \right ) -cf+de \right ) }{f}}+{\frac{b\ln \left ( f \left ( dx+c \right ) -cf+de \right ){\rm arccot} \left (dx+c\right )}{f}}-{\frac{{\frac{i}{2}}b\ln \left ( f \left ( dx+c \right ) -cf+de \right ) }{f}\ln \left ({\frac{if-f \left ( dx+c \right ) }{de+if-cf}} \right ) }+{\frac{{\frac{i}{2}}b\ln \left ( f \left ( dx+c \right ) -cf+de \right ) }{f}\ln \left ({\frac{if+f \left ( dx+c \right ) }{if+cf-de}} \right ) }-{\frac{{\frac{i}{2}}b}{f}{\it dilog} \left ({\frac{if-f \left ( dx+c \right ) }{de+if-cf}} \right ) }+{\frac{{\frac{i}{2}}b}{f}{\it dilog} \left ({\frac{if+f \left ( dx+c \right ) }{if+cf-de}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} 2 \, b \int \frac{\arctan \left (1, d x + c\right )}{2 \,{\left (f x + e\right )}}\,{d x} + \frac{a \log \left (f x + e\right )}{f} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{b \operatorname{arccot}\left (d x + c\right ) + a}{f x + e}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{a + b \operatorname{acot}{\left (c + d x \right )}}{e + f x}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{b \operatorname{arccot}\left (d x + c\right ) + a}{f x + e}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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