Optimal. Leaf size=14 \[ \frac{2}{\cosh (x)+1}+\log (\cosh (x)+1) \]
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Rubi [A] time = 0.0402647, antiderivative size = 14, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 11, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.182, Rules used = {2667, 43} \[ \frac{2}{\cosh (x)+1}+\log (\cosh (x)+1) \]
Antiderivative was successfully verified.
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Rule 2667
Rule 43
Rubi steps
\begin{align*} \int \frac{\sinh ^3(x)}{(1+\cosh (x))^3} \, dx &=-\operatorname{Subst}\left (\int \frac{1-x}{(1+x)^2} \, dx,x,\cosh (x)\right )\\ &=-\operatorname{Subst}\left (\int \left (\frac{1}{-1-x}+\frac{2}{(1+x)^2}\right ) \, dx,x,\cosh (x)\right )\\ &=\frac{2}{1+\cosh (x)}+\log (1+\cosh (x))\\ \end{align*}
Mathematica [A] time = 0.0092576, size = 20, normalized size = 1.43 \[ 2 \log \left (\cosh \left (\frac{x}{2}\right )\right )-\tanh ^2\left (\frac{x}{2}\right ) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.014, size = 15, normalized size = 1.1 \begin{align*} 2\, \left ( 1+\cosh \left ( x \right ) \right ) ^{-1}+\ln \left ( 1+\cosh \left ( x \right ) \right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] time = 1.15641, size = 42, normalized size = 3. \begin{align*} x + \frac{4 \, e^{\left (-x\right )}}{2 \, e^{\left (-x\right )} + e^{\left (-2 \, x\right )} + 1} + 2 \, \log \left (e^{\left (-x\right )} + 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.86647, size = 336, normalized size = 24. \begin{align*} -\frac{x \cosh \left (x\right )^{2} + x \sinh \left (x\right )^{2} + 2 \,{\left (x - 2\right )} \cosh \left (x\right ) - 2 \,{\left (\cosh \left (x\right )^{2} + 2 \,{\left (\cosh \left (x\right ) + 1\right )} \sinh \left (x\right ) + \sinh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) + 1\right )} \log \left (\cosh \left (x\right ) + \sinh \left (x\right ) + 1\right ) + 2 \,{\left (x \cosh \left (x\right ) + x - 2\right )} \sinh \left (x\right ) + x}{\cosh \left (x\right )^{2} + 2 \,{\left (\cosh \left (x\right ) + 1\right )} \sinh \left (x\right ) + \sinh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) + 1} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] time = 0.914517, size = 194, normalized size = 13.86 \begin{align*} \frac{2 \log{\left (\cosh{\left (x \right )} + 1 \right )} \cosh ^{2}{\left (x \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} + \frac{4 \log{\left (\cosh{\left (x \right )} + 1 \right )} \cosh{\left (x \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} + \frac{2 \log{\left (\cosh{\left (x \right )} + 1 \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} + \frac{\sinh ^{2}{\left (x \right )} \cosh ^{2}{\left (x \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} + \frac{2 \sinh ^{2}{\left (x \right )} \cosh{\left (x \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} - \frac{\cosh ^{4}{\left (x \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} - \frac{2 \cosh ^{3}{\left (x \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} + \frac{4 \cosh{\left (x \right )}}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} + \frac{3}{2 \cosh ^{2}{\left (x \right )} + 4 \cosh{\left (x \right )} + 2} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.14942, size = 28, normalized size = 2. \begin{align*} -x + \frac{4 \, e^{x}}{{\left (e^{x} + 1\right )}^{2}} + 2 \, \log \left (e^{x} + 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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