Optimal. Leaf size=54 \[ -\frac{3 x}{2 a}+\frac{4 \sinh ^3(x)}{3 a}+\frac{4 \sinh (x)}{a}-\frac{\sinh (x) \cosh ^3(x)}{a \cosh (x)+a}-\frac{3 \sinh (x) \cosh (x)}{2 a} \]
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Rubi [A] time = 0.0758203, antiderivative size = 54, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 5, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.385, Rules used = {2767, 2748, 2635, 8, 2633} \[ -\frac{3 x}{2 a}+\frac{4 \sinh ^3(x)}{3 a}+\frac{4 \sinh (x)}{a}-\frac{\sinh (x) \cosh ^3(x)}{a \cosh (x)+a}-\frac{3 \sinh (x) \cosh (x)}{2 a} \]
Antiderivative was successfully verified.
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Rule 2767
Rule 2748
Rule 2635
Rule 8
Rule 2633
Rubi steps
\begin{align*} \int \frac{\cosh ^4(x)}{a+a \cosh (x)} \, dx &=-\frac{\cosh ^3(x) \sinh (x)}{a+a \cosh (x)}-\frac{\int \cosh ^2(x) (3 a-4 a \cosh (x)) \, dx}{a^2}\\ &=-\frac{\cosh ^3(x) \sinh (x)}{a+a \cosh (x)}-\frac{3 \int \cosh ^2(x) \, dx}{a}+\frac{4 \int \cosh ^3(x) \, dx}{a}\\ &=-\frac{3 \cosh (x) \sinh (x)}{2 a}-\frac{\cosh ^3(x) \sinh (x)}{a+a \cosh (x)}+\frac{(4 i) \operatorname{Subst}\left (\int \left (1-x^2\right ) \, dx,x,-i \sinh (x)\right )}{a}-\frac{3 \int 1 \, dx}{2 a}\\ &=-\frac{3 x}{2 a}+\frac{4 \sinh (x)}{a}-\frac{3 \cosh (x) \sinh (x)}{2 a}-\frac{\cosh ^3(x) \sinh (x)}{a+a \cosh (x)}+\frac{4 \sinh ^3(x)}{3 a}\\ \end{align*}
Mathematica [A] time = 0.0752781, size = 53, normalized size = 0.98 \[ \frac{\text{sech}\left (\frac{x}{2}\right ) \left (45 \sinh \left (\frac{x}{2}\right )+18 \sinh \left (\frac{3 x}{2}\right )-2 \sinh \left (\frac{5 x}{2}\right )+\sinh \left (\frac{7 x}{2}\right )-36 x \cosh \left (\frac{x}{2}\right )\right )}{24 a} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.024, size = 111, normalized size = 2.1 \begin{align*}{\frac{1}{a}\tanh \left ({\frac{x}{2}} \right ) }-{\frac{1}{3\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) ^{-3}}+{\frac{1}{a} \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) ^{-2}}-{\frac{5}{2\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) ^{-1}}-{\frac{3}{2\,a}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) }-{\frac{1}{3\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) ^{-3}}-{\frac{1}{a} \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) ^{-2}}-{\frac{5}{2\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) ^{-1}}+{\frac{3}{2\,a}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.06566, size = 89, normalized size = 1.65 \begin{align*} -\frac{3 \, x}{2 \, a} - \frac{21 \, e^{\left (-x\right )} - 3 \, e^{\left (-2 \, x\right )} + e^{\left (-3 \, x\right )}}{24 \, a} - \frac{2 \, e^{\left (-x\right )} - 18 \, e^{\left (-2 \, x\right )} - 69 \, e^{\left (-3 \, x\right )} - 1}{24 \,{\left (a e^{\left (-3 \, x\right )} + a e^{\left (-4 \, x\right )}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.91861, size = 346, normalized size = 6.41 \begin{align*} \frac{\cosh \left (x\right )^{4} +{\left (4 \, \cosh \left (x\right ) - 1\right )} \sinh \left (x\right )^{3} + \sinh \left (x\right )^{4} - 3 \, \cosh \left (x\right )^{3} +{\left (6 \, \cosh \left (x\right )^{2} - 9 \, \cosh \left (x\right ) + 20\right )} \sinh \left (x\right )^{2} - 3 \,{\left (12 \, x - 1\right )} \cosh \left (x\right ) + 20 \, \cosh \left (x\right )^{2} +{\left (4 \, \cosh \left (x\right )^{3} - 3 \, \cosh \left (x\right )^{2} - 36 \, x + 32 \, \cosh \left (x\right ) + 39\right )} \sinh \left (x\right ) - 36 \, x - 69}{24 \,{\left (a \cosh \left (x\right ) + a \sinh \left (x\right ) + a\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] time = 3.19746, size = 337, normalized size = 6.24 \begin{align*} - \frac{9 x \tanh ^{6}{\left (\frac{x}{2} \right )}}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} + \frac{27 x \tanh ^{4}{\left (\frac{x}{2} \right )}}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} - \frac{27 x \tanh ^{2}{\left (\frac{x}{2} \right )}}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} + \frac{9 x}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} + \frac{6 \tanh ^{7}{\left (\frac{x}{2} \right )}}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} - \frac{48 \tanh ^{5}{\left (\frac{x}{2} \right )}}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} + \frac{50 \tanh ^{3}{\left (\frac{x}{2} \right )}}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} - \frac{24 \tanh{\left (\frac{x}{2} \right )}}{6 a \tanh ^{6}{\left (\frac{x}{2} \right )} - 18 a \tanh ^{4}{\left (\frac{x}{2} \right )} + 18 a \tanh ^{2}{\left (\frac{x}{2} \right )} - 6 a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.12639, size = 95, normalized size = 1.76 \begin{align*} -\frac{3 \, x}{2 \, a} - \frac{{\left (69 \, e^{\left (3 \, x\right )} + 18 \, e^{\left (2 \, x\right )} - 2 \, e^{x} + 1\right )} e^{\left (-3 \, x\right )}}{24 \, a{\left (e^{x} + 1\right )}} + \frac{a^{2} e^{\left (3 \, x\right )} - 3 \, a^{2} e^{\left (2 \, x\right )} + 21 \, a^{2} e^{x}}{24 \, a^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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