Optimal. Leaf size=36 \[ -\frac{1}{6} \tanh ^{-1}(\cosh (x))-\frac{1}{6} \tanh ^{-1}(2 \cosh (x))+\frac{\tanh ^{-1}\left (\frac{2 \cosh (x)}{\sqrt{3}}\right )}{2 \sqrt{3}} \]
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Rubi [A] time = 0.05212, antiderivative size = 36, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 3, integrand size = 7, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.429, Rules used = {12, 2057, 207} \[ -\frac{1}{6} \tanh ^{-1}(\cosh (x))-\frac{1}{6} \tanh ^{-1}(2 \cosh (x))+\frac{\tanh ^{-1}\left (\frac{2 \cosh (x)}{\sqrt{3}}\right )}{2 \sqrt{3}} \]
Antiderivative was successfully verified.
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Rule 12
Rule 2057
Rule 207
Rubi steps
\begin{align*} \int \cosh (x) \text{csch}(6 x) \, dx &=-\operatorname{Subst}\left (\int \frac{1}{2 \left (3-19 x^2+32 x^4-16 x^6\right )} \, dx,x,\cosh (x)\right )\\ &=-\left (\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{3-19 x^2+32 x^4-16 x^6} \, dx,x,\cosh (x)\right )\right )\\ &=-\left (\frac{1}{2} \operatorname{Subst}\left (\int \left (-\frac{1}{3 \left (-1+x^2\right )}+\frac{2}{-3+4 x^2}-\frac{2}{3 \left (-1+4 x^2\right )}\right ) \, dx,x,\cosh (x)\right )\right )\\ &=\frac{1}{6} \operatorname{Subst}\left (\int \frac{1}{-1+x^2} \, dx,x,\cosh (x)\right )+\frac{1}{3} \operatorname{Subst}\left (\int \frac{1}{-1+4 x^2} \, dx,x,\cosh (x)\right )-\operatorname{Subst}\left (\int \frac{1}{-3+4 x^2} \, dx,x,\cosh (x)\right )\\ &=-\frac{1}{6} \tanh ^{-1}(\cosh (x))-\frac{1}{6} \tanh ^{-1}(2 \cosh (x))+\frac{\tanh ^{-1}\left (\frac{2 \cosh (x)}{\sqrt{3}}\right )}{2 \sqrt{3}}\\ \end{align*}
Mathematica [C] time = 0.0615614, size = 91, normalized size = 2.53 \[ \frac{1}{12} \left (2 \sqrt{3} \tanh ^{-1}\left (\frac{2-i \tanh \left (\frac{x}{2}\right )}{\sqrt{3}}\right )+2 \sqrt{3} \tanh ^{-1}\left (\frac{2+i \tanh \left (\frac{x}{2}\right )}{\sqrt{3}}\right )+2 \log \left (\sinh \left (\frac{x}{2}\right )\right )-2 \log \left (\cosh \left (\frac{x}{2}\right )\right )+\log (1-2 \cosh (x))-\log (2 \cosh (x)+1)\right ) \]
Antiderivative was successfully verified.
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Maple [B] time = 0.046, size = 77, normalized size = 2.1 \begin{align*}{\frac{\ln \left ({{\rm e}^{x}}-1 \right ) }{6}}-{\frac{\ln \left ({{\rm e}^{x}}+1 \right ) }{6}}-{\frac{\ln \left ({{\rm e}^{2\,x}}+{{\rm e}^{x}}+1 \right ) }{12}}+{\frac{\sqrt{3}\ln \left ({{\rm e}^{2\,x}}+\sqrt{3}{{\rm e}^{x}}+1 \right ) }{12}}-{\frac{\sqrt{3}\ln \left ({{\rm e}^{2\,x}}-\sqrt{3}{{\rm e}^{x}}+1 \right ) }{12}}+{\frac{\ln \left ({{\rm e}^{2\,x}}-{{\rm e}^{x}}+1 \right ) }{12}} \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*} -\int \frac{e^{\left (3 \, x\right )} - e^{x}}{2 \,{\left (e^{\left (4 \, x\right )} - e^{\left (2 \, x\right )} + 1\right )}}\,{d x} - \frac{1}{12} \, \log \left (e^{\left (2 \, x\right )} + e^{x} + 1\right ) + \frac{1}{12} \, \log \left (e^{\left (2 \, x\right )} - e^{x} + 1\right ) - \frac{1}{6} \, \log \left (e^{x} + 1\right ) + \frac{1}{6} \, \log \left (e^{x} - 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 2.17203, size = 358, normalized size = 9.94 \begin{align*} \frac{1}{12} \, \sqrt{3} \log \left (\frac{2 \, \cosh \left (x\right )^{2} + 2 \, \sinh \left (x\right )^{2} + 4 \, \sqrt{3} \cosh \left (x\right ) + 5}{2 \, \cosh \left (x\right )^{2} + 2 \, \sinh \left (x\right )^{2} - 1}\right ) - \frac{1}{12} \, \log \left (\frac{2 \, \cosh \left (x\right ) + 1}{\cosh \left (x\right ) - \sinh \left (x\right )}\right ) + \frac{1}{12} \, \log \left (\frac{2 \, \cosh \left (x\right ) - 1}{\cosh \left (x\right ) - \sinh \left (x\right )}\right ) - \frac{1}{6} \, \log \left (\cosh \left (x\right ) + \sinh \left (x\right ) + 1\right ) + \frac{1}{6} \, \log \left (\cosh \left (x\right ) + \sinh \left (x\right ) - 1\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 \cosh{\left (x \right )} \operatorname{csch}{\left (6 x \right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.12417, size = 107, normalized size = 2.97 \begin{align*} -\frac{1}{12} \, \sqrt{3} \log \left (-\frac{\sqrt{3} - e^{\left (-x\right )} - e^{x}}{\sqrt{3} + e^{\left (-x\right )} + e^{x}}\right ) - \frac{1}{12} \, \log \left (e^{\left (-x\right )} + e^{x} + 2\right ) - \frac{1}{12} \, \log \left (e^{\left (-x\right )} + e^{x} + 1\right ) + \frac{1}{12} \, \log \left (e^{\left (-x\right )} + e^{x} - 1\right ) + \frac{1}{12} \, \log \left (e^{\left (-x\right )} + e^{x} - 2\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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