Optimal. Leaf size=25 \[ \frac{1}{4} \text{PolyLog}\left (2,-\frac{1}{x+1}\right )-\frac{1}{4} \text{PolyLog}\left (2,\frac{1}{x+1}\right ) \]
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Rubi [A] time = 0.0227001, antiderivative size = 25, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 12, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {6108, 12, 5913} \[ \frac{1}{4} \text{PolyLog}\left (2,-\frac{1}{x+1}\right )-\frac{1}{4} \text{PolyLog}\left (2,\frac{1}{x+1}\right ) \]
Antiderivative was successfully verified.
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Rule 6108
Rule 12
Rule 5913
Rubi steps
\begin{align*} \int \frac{\coth ^{-1}(1+x)}{2+2 x} \, dx &=\operatorname{Subst}\left (\int \frac{\coth ^{-1}(x)}{2 x} \, dx,x,1+x\right )\\ &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{\coth ^{-1}(x)}{x} \, dx,x,1+x\right )\\ &=\frac{1}{4} \text{Li}_2\left (-\frac{1}{1+x}\right )-\frac{1}{4} \text{Li}_2\left (\frac{1}{1+x}\right )\\ \end{align*}
Mathematica [B] time = 0.0131804, size = 117, normalized size = 4.68 \[ -\frac{1}{4} \text{PolyLog}(2,-x-1)+\frac{1}{4} \text{PolyLog}(2,x+1)+\frac{1}{8} \log ^2\left (-\frac{1}{x+1}\right )-\frac{1}{8} \log ^2\left (\frac{1}{x+1}\right )+\frac{1}{4} \log (x+2) \log \left (-\frac{1}{x+1}\right )-\frac{1}{4} \log \left (\frac{x+2}{x+1}\right ) \log \left (-\frac{1}{x+1}\right )-\frac{1}{4} \log (-x) \log \left (\frac{1}{x+1}\right )+\frac{1}{4} \log \left (\frac{1}{x+1}\right ) \log \left (\frac{x}{x+1}\right ) \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.029, size = 34, normalized size = 1.4 \begin{align*}{\frac{\ln \left ( 1+x \right ){\rm arccoth} \left (1+x\right )}{2}}-{\frac{{\it dilog} \left ( 1+x \right ) }{4}}-{\frac{{\it dilog} \left ( x+2 \right ) }{4}}-{\frac{\ln \left ( 1+x \right ) \ln \left ( x+2 \right ) }{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] time = 0.978667, size = 78, normalized size = 3.12 \begin{align*} -\frac{1}{4} \,{\left (\log \left (x + 2\right ) - \log \left (x\right )\right )} \log \left (x + 1\right ) + \frac{1}{2} \, \operatorname{arcoth}\left (x + 1\right ) \log \left (x + 1\right ) - \frac{1}{4} \, \log \left (x + 1\right ) \log \left (x\right ) + \frac{1}{4} \, \log \left (x + 2\right ) \log \left (-x - 1\right ) - \frac{1}{4} \,{\rm Li}_2\left (-x\right ) + \frac{1}{4} \,{\rm Li}_2\left (x + 2\right ) \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{\operatorname{arcoth}\left (x + 1\right )}{2 \,{\left (x + 1\right )}}, 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*} \frac{\int \frac{\operatorname{acoth}{\left (x + 1 \right )}}{x + 1}\, dx}{2} \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{\operatorname{arcoth}\left (x + 1\right )}{2 \,{\left (x + 1\right )}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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