Integrand size = 11, antiderivative size = 32 \[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=\frac {\log (\sinh (x))}{a^2}-\frac {\log (a+b \sinh (x))}{a^2}+\frac {1}{a (a+b \sinh (x))} \]
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Time = 0.04 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {2800, 46} \[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=-\frac {\log (a+b \sinh (x))}{a^2}+\frac {\log (\sinh (x))}{a^2}+\frac {1}{a (a+b \sinh (x))} \]
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Rule 46
Rule 2800
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {1}{x (a+x)^2} \, dx,x,b \sinh (x)\right ) \\ & = \text {Subst}\left (\int \left (\frac {1}{a^2 x}-\frac {1}{a (a+x)^2}-\frac {1}{a^2 (a+x)}\right ) \, dx,x,b \sinh (x)\right ) \\ & = \frac {\log (\sinh (x))}{a^2}-\frac {\log (a+b \sinh (x))}{a^2}+\frac {1}{a (a+b \sinh (x))} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.84 \[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=\frac {\log (\sinh (x))-\log (a+b \sinh (x))+\frac {a}{a+b \sinh (x)}}{a^2} \]
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Time = 1.11 (sec) , antiderivative size = 57, normalized size of antiderivative = 1.78
method | result | size |
risch | \(\frac {2 \,{\mathrm e}^{x}}{a \left (b \,{\mathrm e}^{2 x}+2 \,{\mathrm e}^{x} a -b \right )}+\frac {\ln \left ({\mathrm e}^{2 x}-1\right )}{a^{2}}-\frac {\ln \left ({\mathrm e}^{2 x}+\frac {2 a \,{\mathrm e}^{x}}{b}-1\right )}{a^{2}}\) | \(57\) |
default | \(-\frac {2 \left (-\frac {b \tanh \left (\frac {x}{2}\right )}{\tanh \left (\frac {x}{2}\right )^{2} a -2 b \tanh \left (\frac {x}{2}\right )-a}+\frac {\ln \left (\tanh \left (\frac {x}{2}\right )^{2} a -2 b \tanh \left (\frac {x}{2}\right )-a \right )}{2}\right )}{a^{2}}+\frac {\ln \left (\tanh \left (\frac {x}{2}\right )\right )}{a^{2}}\) | \(67\) |
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Leaf count of result is larger than twice the leaf count of optimal. 158 vs. \(2 (32) = 64\).
Time = 0.29 (sec) , antiderivative size = 158, normalized size of antiderivative = 4.94 \[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=\frac {2 \, a \cosh \left (x\right ) - {\left (b \cosh \left (x\right )^{2} + b \sinh \left (x\right )^{2} + 2 \, a \cosh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + a\right )} \sinh \left (x\right ) - b\right )} \log \left (\frac {2 \, {\left (b \sinh \left (x\right ) + a\right )}}{\cosh \left (x\right ) - \sinh \left (x\right )}\right ) + {\left (b \cosh \left (x\right )^{2} + b \sinh \left (x\right )^{2} + 2 \, a \cosh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + a\right )} \sinh \left (x\right ) - b\right )} \log \left (\frac {2 \, \sinh \left (x\right )}{\cosh \left (x\right ) - \sinh \left (x\right )}\right ) + 2 \, a \sinh \left (x\right )}{a^{2} b \cosh \left (x\right )^{2} + a^{2} b \sinh \left (x\right )^{2} + 2 \, a^{3} \cosh \left (x\right ) - a^{2} b + 2 \, {\left (a^{2} b \cosh \left (x\right ) + a^{3}\right )} \sinh \left (x\right )} \]
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\[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=\int \frac {\coth {\left (x \right )}}{\left (a + b \sinh {\left (x \right )}\right )^{2}}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 75 vs. \(2 (32) = 64\).
Time = 0.24 (sec) , antiderivative size = 75, normalized size of antiderivative = 2.34 \[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=\frac {2 \, e^{\left (-x\right )}}{2 \, a^{2} e^{\left (-x\right )} - a b e^{\left (-2 \, x\right )} + a b} - \frac {\log \left (-2 \, a e^{\left (-x\right )} + b e^{\left (-2 \, x\right )} - b\right )}{a^{2}} + \frac {\log \left (e^{\left (-x\right )} + 1\right )}{a^{2}} + \frac {\log \left (e^{\left (-x\right )} - 1\right )}{a^{2}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 75 vs. \(2 (32) = 64\).
Time = 0.27 (sec) , antiderivative size = 75, normalized size of antiderivative = 2.34 \[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=-\frac {\log \left ({\left | -b {\left (e^{\left (-x\right )} - e^{x}\right )} + 2 \, a \right |}\right )}{a^{2}} + \frac {\log \left ({\left | -e^{\left (-x\right )} + e^{x} \right |}\right )}{a^{2}} + \frac {b {\left (e^{\left (-x\right )} - e^{x}\right )} - 4 \, a}{{\left (b {\left (e^{\left (-x\right )} - e^{x}\right )} - 2 \, a\right )} a^{2}} \]
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Time = 1.68 (sec) , antiderivative size = 240, normalized size of antiderivative = 7.50 \[ \int \frac {\coth (x)}{(a+b \sinh (x))^2} \, dx=\frac {2\,\mathrm {atan}\left (\frac {a\,\sqrt {-a^4}+b\,{\mathrm {e}}^x\,\sqrt {-a^4}-2\,a\,{\mathrm {e}}^{2\,x}\,\sqrt {-a^4}-b\,{\mathrm {e}}^{3\,x}\,\sqrt {-a^4}}{a^3}\right )-2\,\mathrm {atan}\left (\left (4\,a^5\,b\,\sqrt {-a^4}+4\,a^3\,b^3\,\sqrt {-a^4}\right )\,\left (\frac {1}{8\,a^3\,b\,{\left (a^2+b^2\right )}^2}-{\mathrm {e}}^x\,\left (\frac {1}{16\,a^2\,b^2\,{\left (a^2+b^2\right )}^2}-\frac {{\left (a^2+2\,b^2\right )}^2}{16\,a^6\,b^2\,{\left (a^2+b^2\right )}^2}\right )+\frac {a^2+2\,b^2}{8\,a^5\,b\,{\left (a^2+b^2\right )}^2}\right )\right )}{\sqrt {-a^4}}+\frac {2\,b^3\,{\mathrm {e}}^x\,\left (a^2+b^2\right )}{a\,\left (a^2\,b^3+b^5\right )\,\left (2\,a\,{\mathrm {e}}^x-b+b\,{\mathrm {e}}^{2\,x}\right )} \]
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