Integrand size = 13, antiderivative size = 56 \[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=\frac {b \text {arctanh}(\cosh (x))}{a^2}-\frac {2 \sqrt {a^2+b^2} \text {arctanh}\left (\frac {b-a \tanh \left (\frac {x}{2}\right )}{\sqrt {a^2+b^2}}\right )}{a^2}-\frac {\coth (x)}{a} \]
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Time = 0.15 (sec) , antiderivative size = 56, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.538, Rules used = {2802, 3135, 3080, 3855, 2739, 632, 212} \[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=-\frac {2 \sqrt {a^2+b^2} \text {arctanh}\left (\frac {b-a \tanh \left (\frac {x}{2}\right )}{\sqrt {a^2+b^2}}\right )}{a^2}+\frac {b \text {arctanh}(\cosh (x))}{a^2}-\frac {\coth (x)}{a} \]
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Rule 212
Rule 632
Rule 2739
Rule 2802
Rule 3080
Rule 3135
Rule 3855
Rubi steps \begin{align*} \text {integral}& = \int \frac {\text {csch}^2(x) \left (1+\sinh ^2(x)\right )}{a+b \sinh (x)} \, dx \\ & = -\frac {\coth (x)}{a}+\frac {i \int \frac {\text {csch}(x) (i b-i a \sinh (x))}{a+b \sinh (x)} \, dx}{a} \\ & = -\frac {\coth (x)}{a}-\frac {b \int \text {csch}(x) \, dx}{a^2}+\frac {\left (a^2+b^2\right ) \int \frac {1}{a+b \sinh (x)} \, dx}{a^2} \\ & = \frac {b \text {arctanh}(\cosh (x))}{a^2}-\frac {\coth (x)}{a}+\frac {\left (2 \left (a^2+b^2\right )\right ) \text {Subst}\left (\int \frac {1}{a+2 b x-a x^2} \, dx,x,\tanh \left (\frac {x}{2}\right )\right )}{a^2} \\ & = \frac {b \text {arctanh}(\cosh (x))}{a^2}-\frac {\coth (x)}{a}-\frac {\left (4 \left (a^2+b^2\right )\right ) \text {Subst}\left (\int \frac {1}{4 \left (a^2+b^2\right )-x^2} \, dx,x,2 b-2 a \tanh \left (\frac {x}{2}\right )\right )}{a^2} \\ & = \frac {b \text {arctanh}(\cosh (x))}{a^2}-\frac {2 \sqrt {a^2+b^2} \text {arctanh}\left (\frac {b-a \tanh \left (\frac {x}{2}\right )}{\sqrt {a^2+b^2}}\right )}{a^2}-\frac {\coth (x)}{a} \\ \end{align*}
Time = 0.24 (sec) , antiderivative size = 89, normalized size of antiderivative = 1.59 \[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=-\frac {4 \sqrt {-a^2-b^2} \arctan \left (\frac {b-a \tanh \left (\frac {x}{2}\right )}{\sqrt {-a^2-b^2}}\right )+a \coth \left (\frac {x}{2}\right )-2 b \log \left (\cosh \left (\frac {x}{2}\right )\right )+2 b \log \left (\sinh \left (\frac {x}{2}\right )\right )+a \tanh \left (\frac {x}{2}\right )}{2 a^2} \]
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Time = 0.68 (sec) , antiderivative size = 81, normalized size of antiderivative = 1.45
method | result | size |
default | \(-\frac {\tanh \left (\frac {x}{2}\right )}{2 a}-\frac {\left (-4 a^{2}-4 b^{2}\right ) \operatorname {arctanh}\left (\frac {2 a \tanh \left (\frac {x}{2}\right )-2 b}{2 \sqrt {a^{2}+b^{2}}}\right )}{2 a^{2} \sqrt {a^{2}+b^{2}}}-\frac {1}{2 a \tanh \left (\frac {x}{2}\right )}-\frac {b \ln \left (\tanh \left (\frac {x}{2}\right )\right )}{a^{2}}\) | \(81\) |
risch | \(-\frac {2}{a \left ({\mathrm e}^{2 x}-1\right )}+\frac {b \ln \left ({\mathrm e}^{x}+1\right )}{a^{2}}-\frac {b \ln \left ({\mathrm e}^{x}-1\right )}{a^{2}}+\frac {\sqrt {a^{2}+b^{2}}\, \ln \left ({\mathrm e}^{x}-\frac {-a +\sqrt {a^{2}+b^{2}}}{b}\right )}{a^{2}}-\frac {\sqrt {a^{2}+b^{2}}\, \ln \left ({\mathrm e}^{x}+\frac {a +\sqrt {a^{2}+b^{2}}}{b}\right )}{a^{2}}\) | \(104\) |
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Leaf count of result is larger than twice the leaf count of optimal. 228 vs. \(2 (52) = 104\).
Time = 0.30 (sec) , antiderivative size = 228, normalized size of antiderivative = 4.07 \[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=\frac {\sqrt {a^{2} + b^{2}} {\left (\cosh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) \sinh \left (x\right ) + \sinh \left (x\right )^{2} - 1\right )} \log \left (\frac {b^{2} \cosh \left (x\right )^{2} + b^{2} \sinh \left (x\right )^{2} + 2 \, a b \cosh \left (x\right ) + 2 \, a^{2} + b^{2} + 2 \, {\left (b^{2} \cosh \left (x\right ) + a b\right )} \sinh \left (x\right ) - 2 \, \sqrt {a^{2} + b^{2}} {\left (b \cosh \left (x\right ) + b \sinh \left (x\right ) + a\right )}}{b \cosh \left (x\right )^{2} + b \sinh \left (x\right )^{2} + 2 \, a \cosh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + a\right )} \sinh \left (x\right ) - b}\right ) + {\left (b \cosh \left (x\right )^{2} + 2 \, b \cosh \left (x\right ) \sinh \left (x\right ) + b \sinh \left (x\right )^{2} - b\right )} \log \left (\cosh \left (x\right ) + \sinh \left (x\right ) + 1\right ) - {\left (b \cosh \left (x\right )^{2} + 2 \, b \cosh \left (x\right ) \sinh \left (x\right ) + b \sinh \left (x\right )^{2} - b\right )} \log \left (\cosh \left (x\right ) + \sinh \left (x\right ) - 1\right ) - 2 \, a}{a^{2} \cosh \left (x\right )^{2} + 2 \, a^{2} \cosh \left (x\right ) \sinh \left (x\right ) + a^{2} \sinh \left (x\right )^{2} - a^{2}} \]
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\[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=\int \frac {\coth ^{2}{\left (x \right )}}{a + b \sinh {\left (x \right )}}\, dx \]
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Time = 0.33 (sec) , antiderivative size = 97, normalized size of antiderivative = 1.73 \[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=\frac {b \log \left (e^{\left (-x\right )} + 1\right )}{a^{2}} - \frac {b \log \left (e^{\left (-x\right )} - 1\right )}{a^{2}} + \frac {\sqrt {a^{2} + b^{2}} \log \left (\frac {b e^{\left (-x\right )} - a - \sqrt {a^{2} + b^{2}}}{b e^{\left (-x\right )} - a + \sqrt {a^{2} + b^{2}}}\right )}{a^{2}} + \frac {2}{a e^{\left (-2 \, x\right )} - a} \]
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Time = 0.27 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.70 \[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=\frac {b \log \left (e^{x} + 1\right )}{a^{2}} - \frac {b \log \left ({\left | e^{x} - 1 \right |}\right )}{a^{2}} + \frac {\sqrt {a^{2} + b^{2}} \log \left (\frac {{\left | 2 \, b e^{x} + 2 \, a - 2 \, \sqrt {a^{2} + b^{2}} \right |}}{{\left | 2 \, b e^{x} + 2 \, a + 2 \, \sqrt {a^{2} + b^{2}} \right |}}\right )}{a^{2}} - \frac {2}{a {\left (e^{\left (2 \, x\right )} - 1\right )}} \]
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Time = 1.56 (sec) , antiderivative size = 304, normalized size of antiderivative = 5.43 \[ \int \frac {\coth ^2(x)}{a+b \sinh (x)} \, dx=\frac {2}{a-a\,{\mathrm {e}}^{2\,x}}-\frac {b\,\ln \left (32\,a^2+32\,b^2-32\,a^2\,{\mathrm {e}}^x-32\,b^2\,{\mathrm {e}}^x\right )}{a^2}+\frac {b\,\ln \left (32\,a^2+32\,b^2+32\,a^2\,{\mathrm {e}}^x+32\,b^2\,{\mathrm {e}}^x\right )}{a^2}+\frac {\ln \left (128\,a^4\,{\mathrm {e}}^x-64\,a\,b^3-64\,a^3\,b-32\,b^3\,\sqrt {a^2+b^2}+32\,b^4\,{\mathrm {e}}^x+128\,a^3\,{\mathrm {e}}^x\,\sqrt {a^2+b^2}+160\,a^2\,b^2\,{\mathrm {e}}^x-64\,a^2\,b\,\sqrt {a^2+b^2}+96\,a\,b^2\,{\mathrm {e}}^x\,\sqrt {a^2+b^2}\right )\,\sqrt {a^2+b^2}}{a^2}-\frac {\ln \left (32\,b^3\,\sqrt {a^2+b^2}-64\,a\,b^3-64\,a^3\,b+128\,a^4\,{\mathrm {e}}^x+32\,b^4\,{\mathrm {e}}^x-128\,a^3\,{\mathrm {e}}^x\,\sqrt {a^2+b^2}+160\,a^2\,b^2\,{\mathrm {e}}^x+64\,a^2\,b\,\sqrt {a^2+b^2}-96\,a\,b^2\,{\mathrm {e}}^x\,\sqrt {a^2+b^2}\right )\,\sqrt {a^2+b^2}}{a^2} \]
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