Optimal. Leaf size=19 \[ \frac{\tanh ^2(x)}{2 a (a+b \tanh (x))^2} \]
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Rubi [A] time = 0.0321619, antiderivative size = 19, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.143, Rules used = {3087, 37} \[ \frac{\tanh ^2(x)}{2 a (a+b \tanh (x))^2} \]
Antiderivative was successfully verified.
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Rule 3087
Rule 37
Rubi steps
\begin{align*} \int \frac{\sinh (x)}{(a \cosh (x)+b \sinh (x))^3} \, dx &=-\operatorname{Subst}\left (\int \frac{x}{(a-i b x)^3} \, dx,x,i \tanh (x)\right )\\ &=\frac{\tanh ^2(x)}{2 a (a+b \tanh (x))^2}\\ \end{align*}
Mathematica [B] time = 0.114617, size = 54, normalized size = 2.84 \[ -\frac{a^2+a b \sinh (2 x)+b^2 \cosh (2 x)-b^2}{2 a (a-b) (a+b) (a \cosh (x)+b \sinh (x))^2} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.068, size = 31, normalized size = 1.6 \begin{align*} 2\,{\frac{ \left ( \tanh \left ( x/2 \right ) \right ) ^{2}}{a \left ( a+2\,\tanh \left ( x/2 \right ) b+a \left ( \tanh \left ( x/2 \right ) \right ) ^{2} \right ) ^{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] time = 1.26658, size = 225, normalized size = 11.84 \begin{align*} -\frac{2 \,{\left (a - b\right )} e^{\left (-2 \, x\right )}}{a^{4} - 2 \, a^{2} b^{2} + b^{4} + 2 \,{\left (a^{4} - 2 \, a^{3} b + 2 \, a b^{3} - b^{4}\right )} e^{\left (-2 \, x\right )} +{\left (a^{4} - 4 \, a^{3} b + 6 \, a^{2} b^{2} - 4 \, a b^{3} + b^{4}\right )} e^{\left (-4 \, x\right )}} - \frac{2 \, b}{a^{4} - 2 \, a^{2} b^{2} + b^{4} + 2 \,{\left (a^{4} - 2 \, a^{3} b + 2 \, a b^{3} - b^{4}\right )} e^{\left (-2 \, x\right )} +{\left (a^{4} - 4 \, a^{3} b + 6 \, a^{2} b^{2} - 4 \, a b^{3} + b^{4}\right )} e^{\left (-4 \, x\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.78601, size = 518, normalized size = 27.26 \begin{align*} -\frac{2 \,{\left (a \cosh \left (x\right ) +{\left (a + 2 \, b\right )} \sinh \left (x\right )\right )}}{{\left (a^{4} + 4 \, a^{3} b + 6 \, a^{2} b^{2} + 4 \, a b^{3} + b^{4}\right )} \cosh \left (x\right )^{3} + 3 \,{\left (a^{4} + 4 \, a^{3} b + 6 \, a^{2} b^{2} + 4 \, a b^{3} + b^{4}\right )} \cosh \left (x\right ) \sinh \left (x\right )^{2} +{\left (a^{4} + 4 \, a^{3} b + 6 \, a^{2} b^{2} + 4 \, a b^{3} + b^{4}\right )} \sinh \left (x\right )^{3} +{\left (3 \, a^{4} + 4 \, a^{3} b - 2 \, a^{2} b^{2} - 4 \, a b^{3} - b^{4}\right )} \cosh \left (x\right ) +{\left (a^{4} + 4 \, a^{3} b + 2 \, a^{2} b^{2} - 4 \, a b^{3} - 3 \, b^{4} + 3 \,{\left (a^{4} + 4 \, a^{3} b + 6 \, a^{2} b^{2} + 4 \, a b^{3} + b^{4}\right )} \cosh \left (x\right )^{2}\right )} \sinh \left (x\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.16817, size = 68, normalized size = 3.58 \begin{align*} -\frac{2 \,{\left (a e^{\left (2 \, x\right )} + b e^{\left (2 \, x\right )} - b\right )}}{{\left (a^{2} + 2 \, a b + b^{2}\right )}{\left (a e^{\left (2 \, x\right )} + b e^{\left (2 \, x\right )} + a - b\right )}^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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