Optimal. Leaf size=52 \[ \frac{\left (a^2+b^2\right ) \log (\sinh (x))}{a^3}-\frac{\left (a^2+b^2\right ) \log (a+b \sinh (x))}{a^3}+\frac{b \text{csch}(x)}{a^2}-\frac{\text{csch}^2(x)}{2 a} \]
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Rubi [A] time = 0.0947691, antiderivative size = 52, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.154, Rules used = {2721, 894} \[ \frac{\left (a^2+b^2\right ) \log (\sinh (x))}{a^3}-\frac{\left (a^2+b^2\right ) \log (a+b \sinh (x))}{a^3}+\frac{b \text{csch}(x)}{a^2}-\frac{\text{csch}^2(x)}{2 a} \]
Antiderivative was successfully verified.
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Rule 2721
Rule 894
Rubi steps
\begin{align*} \int \frac{\coth ^3(x)}{a+b \sinh (x)} \, dx &=-\operatorname{Subst}\left (\int \frac{-b^2-x^2}{x^3 (a+x)} \, dx,x,b \sinh (x)\right )\\ &=-\operatorname{Subst}\left (\int \left (-\frac{b^2}{a x^3}+\frac{b^2}{a^2 x^2}+\frac{-a^2-b^2}{a^3 x}+\frac{a^2+b^2}{a^3 (a+x)}\right ) \, dx,x,b \sinh (x)\right )\\ &=\frac{b \text{csch}(x)}{a^2}-\frac{\text{csch}^2(x)}{2 a}+\frac{\left (a^2+b^2\right ) \log (\sinh (x))}{a^3}-\frac{\left (a^2+b^2\right ) \log (a+b \sinh (x))}{a^3}\\ \end{align*}
Mathematica [A] time = 0.0609568, size = 45, normalized size = 0.87 \[ \frac{2 \left (a^2+b^2\right ) (\log (\sinh (x))-\log (a+b \sinh (x)))-a^2 \text{csch}^2(x)+2 a b \text{csch}(x)}{2 a^3} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.034, size = 120, normalized size = 2.3 \begin{align*} -{\frac{1}{8\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) ^{2}}-{\frac{b}{2\,{a}^{2}}\tanh \left ({\frac{x}{2}} \right ) }-{\frac{1}{8\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) ^{-2}}+{\frac{1}{a}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) }+{\frac{{b}^{2}}{{a}^{3}}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) }+{\frac{b}{2\,{a}^{2}} \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) ^{-1}}-{\frac{1}{a}\ln \left ( a \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) ^{2}-2\,\tanh \left ( x/2 \right ) b-a \right ) }-{\frac{{b}^{2}}{{a}^{3}}\ln \left ( a \left ( \tanh \left ({\frac{x}{2}} \right ) \right ) ^{2}-2\,\tanh \left ( x/2 \right ) b-a \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] time = 1.02386, size = 157, normalized size = 3.02 \begin{align*} -\frac{2 \,{\left (b e^{\left (-x\right )} - a e^{\left (-2 \, x\right )} - b e^{\left (-3 \, x\right )}\right )}}{2 \, a^{2} e^{\left (-2 \, x\right )} - a^{2} e^{\left (-4 \, x\right )} - a^{2}} - \frac{{\left (a^{2} + b^{2}\right )} \log \left (-2 \, a e^{\left (-x\right )} + b e^{\left (-2 \, x\right )} - b\right )}{a^{3}} + \frac{{\left (a^{2} + b^{2}\right )} \log \left (e^{\left (-x\right )} + 1\right )}{a^{3}} + \frac{{\left (a^{2} + b^{2}\right )} \log \left (e^{\left (-x\right )} - 1\right )}{a^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 2.17359, size = 1165, normalized size = 22.4 \begin{align*} \frac{2 \, a b \cosh \left (x\right )^{3} + 2 \, a b \sinh \left (x\right )^{3} - 2 \, a^{2} \cosh \left (x\right )^{2} - 2 \, a b \cosh \left (x\right ) + 2 \,{\left (3 \, a b \cosh \left (x\right ) - a^{2}\right )} \sinh \left (x\right )^{2} -{\left ({\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{4} + 4 \,{\left (a^{2} + b^{2}\right )} \cosh \left (x\right ) \sinh \left (x\right )^{3} +{\left (a^{2} + b^{2}\right )} \sinh \left (x\right )^{4} - 2 \,{\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{2} + 2 \,{\left (3 \,{\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{2} - a^{2} - b^{2}\right )} \sinh \left (x\right )^{2} + a^{2} + b^{2} + 4 \,{\left ({\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{3} -{\left (a^{2} + b^{2}\right )} \cosh \left (x\right )\right )} \sinh \left (x\right )\right )} \log \left (\frac{2 \,{\left (b \sinh \left (x\right ) + a\right )}}{\cosh \left (x\right ) - \sinh \left (x\right )}\right ) +{\left ({\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{4} + 4 \,{\left (a^{2} + b^{2}\right )} \cosh \left (x\right ) \sinh \left (x\right )^{3} +{\left (a^{2} + b^{2}\right )} \sinh \left (x\right )^{4} - 2 \,{\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{2} + 2 \,{\left (3 \,{\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{2} - a^{2} - b^{2}\right )} \sinh \left (x\right )^{2} + a^{2} + b^{2} + 4 \,{\left ({\left (a^{2} + b^{2}\right )} \cosh \left (x\right )^{3} -{\left (a^{2} + b^{2}\right )} \cosh \left (x\right )\right )} \sinh \left (x\right )\right )} \log \left (\frac{2 \, \sinh \left (x\right )}{\cosh \left (x\right ) - \sinh \left (x\right )}\right ) + 2 \,{\left (3 \, a b \cosh \left (x\right )^{2} - 2 \, a^{2} \cosh \left (x\right ) - a b\right )} \sinh \left (x\right )}{a^{3} \cosh \left (x\right )^{4} + 4 \, a^{3} \cosh \left (x\right ) \sinh \left (x\right )^{3} + a^{3} \sinh \left (x\right )^{4} - 2 \, a^{3} \cosh \left (x\right )^{2} + a^{3} + 2 \,{\left (3 \, a^{3} \cosh \left (x\right )^{2} - a^{3}\right )} \sinh \left (x\right )^{2} + 4 \,{\left (a^{3} \cosh \left (x\right )^{3} - a^{3} \cosh \left (x\right )\right )} \sinh \left (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{\coth ^{3}{\left (x \right )}}{a + b \sinh{\left (x \right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.1421, size = 169, normalized size = 3.25 \begin{align*} \frac{{\left (a^{2} + b^{2}\right )} \log \left ({\left | -e^{\left (-x\right )} + e^{x} \right |}\right )}{a^{3}} - \frac{{\left (a^{2} b + b^{3}\right )} \log \left ({\left | -b{\left (e^{\left (-x\right )} - e^{x}\right )} + 2 \, a \right |}\right )}{a^{3} b} - \frac{3 \, a^{2}{\left (e^{\left (-x\right )} - e^{x}\right )}^{2} + 3 \, b^{2}{\left (e^{\left (-x\right )} - e^{x}\right )}^{2} + 4 \, a b{\left (e^{\left (-x\right )} - e^{x}\right )} + 4 \, a^{2}}{2 \, a^{3}{\left (e^{\left (-x\right )} - e^{x}\right )}^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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