Optimal. Leaf size=80 \[ -\frac{x \left (a^2-2 b^2\right )}{2 a^3}+\frac{2 b^3 \tanh ^{-1}\left (\frac{a-b \tanh \left (\frac{x}{2}\right )}{\sqrt{a^2+b^2}}\right )}{a^3 \sqrt{a^2+b^2}}-\frac{b \cosh (x)}{a^2}+\frac{\sinh (x) \cosh (x)}{2 a} \]
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Rubi [A] time = 0.288274, antiderivative size = 80, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 7, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.538, Rules used = {3853, 4104, 3919, 3831, 2660, 618, 206} \[ -\frac{x \left (a^2-2 b^2\right )}{2 a^3}+\frac{2 b^3 \tanh ^{-1}\left (\frac{a-b \tanh \left (\frac{x}{2}\right )}{\sqrt{a^2+b^2}}\right )}{a^3 \sqrt{a^2+b^2}}-\frac{b \cosh (x)}{a^2}+\frac{\sinh (x) \cosh (x)}{2 a} \]
Antiderivative was successfully verified.
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Rule 3853
Rule 4104
Rule 3919
Rule 3831
Rule 2660
Rule 618
Rule 206
Rubi steps
\begin{align*} \int \frac{\sinh ^2(x)}{a+b \text{csch}(x)} \, dx &=\frac{\cosh (x) \sinh (x)}{2 a}-\frac{i \int \frac{\left (-2 i b-i a \text{csch}(x)-i b \text{csch}^2(x)\right ) \sinh (x)}{a+b \text{csch}(x)} \, dx}{2 a}\\ &=-\frac{b \cosh (x)}{a^2}+\frac{\cosh (x) \sinh (x)}{2 a}+\frac{\int \frac{-a^2+2 b^2-a b \text{csch}(x)}{a+b \text{csch}(x)} \, dx}{2 a^2}\\ &=-\frac{\left (a^2-2 b^2\right ) x}{2 a^3}-\frac{b \cosh (x)}{a^2}+\frac{\cosh (x) \sinh (x)}{2 a}-\frac{b^3 \int \frac{\text{csch}(x)}{a+b \text{csch}(x)} \, dx}{a^3}\\ &=-\frac{\left (a^2-2 b^2\right ) x}{2 a^3}-\frac{b \cosh (x)}{a^2}+\frac{\cosh (x) \sinh (x)}{2 a}-\frac{b^2 \int \frac{1}{1+\frac{a \sinh (x)}{b}} \, dx}{a^3}\\ &=-\frac{\left (a^2-2 b^2\right ) x}{2 a^3}-\frac{b \cosh (x)}{a^2}+\frac{\cosh (x) \sinh (x)}{2 a}-\frac{\left (2 b^2\right ) \operatorname{Subst}\left (\int \frac{1}{1+\frac{2 a x}{b}-x^2} \, dx,x,\tanh \left (\frac{x}{2}\right )\right )}{a^3}\\ &=-\frac{\left (a^2-2 b^2\right ) x}{2 a^3}-\frac{b \cosh (x)}{a^2}+\frac{\cosh (x) \sinh (x)}{2 a}+\frac{\left (4 b^2\right ) \operatorname{Subst}\left (\int \frac{1}{4 \left (1+\frac{a^2}{b^2}\right )-x^2} \, dx,x,\frac{2 a}{b}-2 \tanh \left (\frac{x}{2}\right )\right )}{a^3}\\ &=-\frac{\left (a^2-2 b^2\right ) x}{2 a^3}+\frac{2 b^3 \tanh ^{-1}\left (\frac{b \left (\frac{a}{b}-\tanh \left (\frac{x}{2}\right )\right )}{\sqrt{a^2+b^2}}\right )}{a^3 \sqrt{a^2+b^2}}-\frac{b \cosh (x)}{a^2}+\frac{\cosh (x) \sinh (x)}{2 a}\\ \end{align*}
Mathematica [A] time = 0.135727, size = 82, normalized size = 1.02 \[ \frac{-\frac{8 b^3 \tan ^{-1}\left (\frac{a-b \tanh \left (\frac{x}{2}\right )}{\sqrt{-a^2-b^2}}\right )}{\sqrt{-a^2-b^2}}-2 a^2 x+a^2 \sinh (2 x)-4 a b \cosh (x)+4 b^2 x}{4 a^3} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.034, size = 174, normalized size = 2.2 \begin{align*} -{\frac{1}{2\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) ^{-2}}+{\frac{1}{2\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) ^{-1}}-{\frac{b}{{a}^{2}} \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) ^{-1}}-{\frac{1}{2\,a}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) }+{\frac{{b}^{2}}{{a}^{3}}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) +1 \right ) }-2\,{\frac{{b}^{3}}{{a}^{3}\sqrt{{a}^{2}+{b}^{2}}}{\it Artanh} \left ( 1/2\,{\frac{2\,\tanh \left ( x/2 \right ) b-2\,a}{\sqrt{{a}^{2}+{b}^{2}}}} \right ) }+{\frac{1}{2\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) ^{-2}}+{\frac{1}{2\,a} \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) ^{-1}}+{\frac{b}{{a}^{2}} \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) ^{-1}}+{\frac{1}{2\,a}\ln \left ( \tanh \left ({\frac{x}{2}} \right ) -1 \right ) }-{\frac{{b}^{2}}{{a}^{3}}\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 [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.9658, size = 1142, normalized size = 14.28 \begin{align*} \frac{{\left (a^{4} + a^{2} b^{2}\right )} \cosh \left (x\right )^{4} +{\left (a^{4} + a^{2} b^{2}\right )} \sinh \left (x\right )^{4} - a^{4} - a^{2} b^{2} - 4 \,{\left (a^{4} - a^{2} b^{2} - 2 \, b^{4}\right )} x \cosh \left (x\right )^{2} - 4 \,{\left (a^{3} b + a b^{3}\right )} \cosh \left (x\right )^{3} - 4 \,{\left (a^{3} b + a b^{3} -{\left (a^{4} + a^{2} b^{2}\right )} \cosh \left (x\right )\right )} \sinh \left (x\right )^{3} + 2 \,{\left (3 \,{\left (a^{4} + a^{2} b^{2}\right )} \cosh \left (x\right )^{2} - 2 \,{\left (a^{4} - a^{2} b^{2} - 2 \, b^{4}\right )} x - 6 \,{\left (a^{3} b + a b^{3}\right )} \cosh \left (x\right )\right )} \sinh \left (x\right )^{2} + 8 \,{\left (b^{3} \cosh \left (x\right )^{2} + 2 \, b^{3} \cosh \left (x\right ) \sinh \left (x\right ) + b^{3} \sinh \left (x\right )^{2}\right )} \sqrt{a^{2} + b^{2}} \log \left (\frac{a^{2} \cosh \left (x\right )^{2} + a^{2} \sinh \left (x\right )^{2} + 2 \, a b \cosh \left (x\right ) + a^{2} + 2 \, b^{2} + 2 \,{\left (a^{2} \cosh \left (x\right ) + a b\right )} \sinh \left (x\right ) + 2 \, \sqrt{a^{2} + b^{2}}{\left (a \cosh \left (x\right ) + a \sinh \left (x\right ) + b\right )}}{a \cosh \left (x\right )^{2} + a \sinh \left (x\right )^{2} + 2 \, b \cosh \left (x\right ) + 2 \,{\left (a \cosh \left (x\right ) + b\right )} \sinh \left (x\right ) - a}\right ) - 4 \,{\left (a^{3} b + a b^{3}\right )} \cosh \left (x\right ) - 4 \,{\left (a^{3} b + a b^{3} -{\left (a^{4} + a^{2} b^{2}\right )} \cosh \left (x\right )^{3} + 2 \,{\left (a^{4} - a^{2} b^{2} - 2 \, b^{4}\right )} x \cosh \left (x\right ) + 3 \,{\left (a^{3} b + a b^{3}\right )} \cosh \left (x\right )^{2}\right )} \sinh \left (x\right )}{8 \,{\left ({\left (a^{5} + a^{3} b^{2}\right )} \cosh \left (x\right )^{2} + 2 \,{\left (a^{5} + a^{3} b^{2}\right )} \cosh \left (x\right ) \sinh \left (x\right ) +{\left (a^{5} + a^{3} b^{2}\right )} \sinh \left (x\right )^{2}\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{\sinh ^{2}{\left (x \right )}}{a + b \operatorname{csch}{\left (x \right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.15516, size = 155, normalized size = 1.94 \begin{align*} -\frac{b^{3} \log \left (\frac{{\left | 2 \, a e^{x} + 2 \, b - 2 \, \sqrt{a^{2} + b^{2}} \right |}}{{\left | 2 \, a e^{x} + 2 \, b + 2 \, \sqrt{a^{2} + b^{2}} \right |}}\right )}{\sqrt{a^{2} + b^{2}} a^{3}} + \frac{a e^{\left (2 \, x\right )} - 4 \, b e^{x}}{8 \, a^{2}} - \frac{{\left (a^{2} - 2 \, b^{2}\right )} x}{2 \, a^{3}} - \frac{{\left (4 \, a b e^{x} + a^{2}\right )} e^{\left (-2 \, x\right )}}{8 \, a^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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