Integrand size = 13, antiderivative size = 34 \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=-x+\frac {4 x}{\sqrt {5}}-\frac {8 \text {arctanh}\left (\frac {\cosh (x)}{2+\sqrt {5}+\sinh (x)}\right )}{\sqrt {5}} \]
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Time = 0.03 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {2814, 2736} \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=-\frac {8 \text {arctanh}\left (\frac {\cosh (x)}{\sinh (x)+\sqrt {5}+2}\right )}{\sqrt {5}}+\frac {4 x}{\sqrt {5}}-x \]
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Rule 2736
Rule 2814
Rubi steps \begin{align*} \text {integral}& = -x+4 \int \frac {1}{2+\sinh (x)} \, dx \\ & = -x+\frac {4 x}{\sqrt {5}}-\frac {8 \text {arctanh}\left (\frac {\cosh (x)}{2+\sqrt {5}+\sinh (x)}\right )}{\sqrt {5}} \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.82 \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=-x-\frac {8 \text {arctanh}\left (\frac {1-2 \tanh \left (\frac {x}{2}\right )}{\sqrt {5}}\right )}{\sqrt {5}} \]
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Time = 0.34 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.97
method | result | size |
risch | \(-x +\frac {4 \sqrt {5}\, \ln \left ({\mathrm e}^{x}+2-\sqrt {5}\right )}{5}-\frac {4 \sqrt {5}\, \ln \left ({\mathrm e}^{x}+2+\sqrt {5}\right )}{5}\) | \(33\) |
default | \(\frac {8 \sqrt {5}\, \operatorname {arctanh}\left (\frac {\left (2 \tanh \left (\frac {x}{2}\right )-1\right ) \sqrt {5}}{5}\right )}{5}-\ln \left (\tanh \left (\frac {x}{2}\right )+1\right )+\ln \left (\tanh \left (\frac {x}{2}\right )-1\right )\) | \(37\) |
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Time = 0.28 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.24 \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=\frac {4}{5} \, \sqrt {5} \log \left (-\frac {{\left (2 \, \sqrt {5} - 5\right )} \cosh \left (x\right ) - 2 \, {\left (\sqrt {5} - 2\right )} \sinh \left (x\right ) + \sqrt {5} - 2}{\sinh \left (x\right ) + 2}\right ) - x \]
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Time = 0.77 (sec) , antiderivative size = 51, normalized size of antiderivative = 1.50 \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=- x + \frac {4 \sqrt {5} \log {\left (\tanh {\left (\frac {x}{2} \right )} - \frac {1}{2} + \frac {\sqrt {5}}{2} \right )}}{5} - \frac {4 \sqrt {5} \log {\left (\tanh {\left (\frac {x}{2} \right )} - \frac {\sqrt {5}}{2} - \frac {1}{2} \right )}}{5} \]
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Time = 0.28 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.00 \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=\frac {4}{5} \, \sqrt {5} \log \left (-\frac {\sqrt {5} - e^{\left (-x\right )} + 2}{\sqrt {5} + e^{\left (-x\right )} - 2}\right ) - x \]
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Time = 0.27 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.97 \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=\frac {4}{5} \, \sqrt {5} \log \left (\frac {{\left | -2 \, \sqrt {5} + 2 \, e^{x} + 4 \right |}}{2 \, {\left (\sqrt {5} + e^{x} + 2\right )}}\right ) - x \]
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Time = 1.27 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.41 \[ \int \frac {2-\sinh (x)}{2+\sinh (x)} \, dx=\frac {4\,\sqrt {5}\,\ln \left (-8\,{\mathrm {e}}^x-\frac {4\,\sqrt {5}\,\left (4\,{\mathrm {e}}^x-2\right )}{5}\right )}{5}-x-\frac {4\,\sqrt {5}\,\ln \left (\frac {4\,\sqrt {5}\,\left (4\,{\mathrm {e}}^x-2\right )}{5}-8\,{\mathrm {e}}^x\right )}{5} \]
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