Integrand size = 10, antiderivative size = 42 \[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\frac {\arctan (\sinh (x)) \cosh (x)}{2 a \sqrt {a \cosh ^2(x)}}+\frac {\tanh (x)}{2 a \sqrt {a \cosh ^2(x)}} \]
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Time = 0.02 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {3283, 3286, 3855} \[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\frac {\cosh (x) \arctan (\sinh (x))}{2 a \sqrt {a \cosh ^2(x)}}+\frac {\tanh (x)}{2 a \sqrt {a \cosh ^2(x)}} \]
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Rule 3283
Rule 3286
Rule 3855
Rubi steps \begin{align*} \text {integral}& = \frac {\tanh (x)}{2 a \sqrt {a \cosh ^2(x)}}+\frac {\int \frac {1}{\sqrt {a \cosh ^2(x)}} \, dx}{2 a} \\ & = \frac {\tanh (x)}{2 a \sqrt {a \cosh ^2(x)}}+\frac {\cosh (x) \int \text {sech}(x) \, dx}{2 a \sqrt {a \cosh ^2(x)}} \\ & = \frac {\arctan (\sinh (x)) \cosh (x)}{2 a \sqrt {a \cosh ^2(x)}}+\frac {\tanh (x)}{2 a \sqrt {a \cosh ^2(x)}} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.62 \[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\frac {\arctan (\sinh (x)) \cosh (x)+\tanh (x)}{2 a \sqrt {a \cosh ^2(x)}} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(81\) vs. \(2(34)=68\).
Time = 0.19 (sec) , antiderivative size = 82, normalized size of antiderivative = 1.95
method | result | size |
default | \(\frac {\sqrt {a \sinh \left (x \right )^{2}}\, \left (-\ln \left (\frac {2 \sqrt {-a}\, \sqrt {a \sinh \left (x \right )^{2}}-2 a}{\cosh \left (x \right )}\right ) a \cosh \left (x \right )^{2}+\sqrt {-a}\, \sqrt {a \sinh \left (x \right )^{2}}\right )}{2 a^{2} \cosh \left (x \right ) \sqrt {-a}\, \sinh \left (x \right ) \sqrt {a \cosh \left (x \right )^{2}}}\) | \(82\) |
risch | \(\frac {{\mathrm e}^{2 x}-1}{a \left (1+{\mathrm e}^{2 x}\right ) \sqrt {a \left (1+{\mathrm e}^{2 x}\right )^{2} {\mathrm e}^{-2 x}}}+\frac {i \left (1+{\mathrm e}^{2 x}\right ) {\mathrm e}^{-x} \ln \left ({\mathrm e}^{x}+i\right )}{2 a \sqrt {a \left (1+{\mathrm e}^{2 x}\right )^{2} {\mathrm e}^{-2 x}}}-\frac {i \left (1+{\mathrm e}^{2 x}\right ) {\mathrm e}^{-x} \ln \left ({\mathrm e}^{x}-i\right )}{2 a \sqrt {a \left (1+{\mathrm e}^{2 x}\right )^{2} {\mathrm e}^{-2 x}}}\) | \(112\) |
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Leaf count of result is larger than twice the leaf count of optimal. 299 vs. \(2 (34) = 68\).
Time = 0.26 (sec) , antiderivative size = 299, normalized size of antiderivative = 7.12 \[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\frac {{\left (3 \, \cosh \left (x\right ) e^{x} \sinh \left (x\right )^{2} + e^{x} \sinh \left (x\right )^{3} + {\left (3 \, \cosh \left (x\right )^{2} - 1\right )} e^{x} \sinh \left (x\right ) + {\left (4 \, \cosh \left (x\right ) e^{x} \sinh \left (x\right )^{3} + e^{x} \sinh \left (x\right )^{4} + 2 \, {\left (3 \, \cosh \left (x\right )^{2} + 1\right )} e^{x} \sinh \left (x\right )^{2} + 4 \, {\left (\cosh \left (x\right )^{3} + \cosh \left (x\right )\right )} e^{x} \sinh \left (x\right ) + {\left (\cosh \left (x\right )^{4} + 2 \, \cosh \left (x\right )^{2} + 1\right )} e^{x}\right )} \arctan \left (\cosh \left (x\right ) + \sinh \left (x\right )\right ) + {\left (\cosh \left (x\right )^{3} - \cosh \left (x\right )\right )} e^{x}\right )} \sqrt {a e^{\left (4 \, x\right )} + 2 \, a e^{\left (2 \, x\right )} + a} e^{\left (-x\right )}}{a^{2} \cosh \left (x\right )^{4} + {\left (a^{2} e^{\left (2 \, x\right )} + a^{2}\right )} \sinh \left (x\right )^{4} + 2 \, a^{2} \cosh \left (x\right )^{2} + 4 \, {\left (a^{2} \cosh \left (x\right ) e^{\left (2 \, x\right )} + a^{2} \cosh \left (x\right )\right )} \sinh \left (x\right )^{3} + 2 \, {\left (3 \, a^{2} \cosh \left (x\right )^{2} + a^{2} + {\left (3 \, a^{2} \cosh \left (x\right )^{2} + a^{2}\right )} e^{\left (2 \, x\right )}\right )} \sinh \left (x\right )^{2} + a^{2} + {\left (a^{2} \cosh \left (x\right )^{4} + 2 \, a^{2} \cosh \left (x\right )^{2} + a^{2}\right )} e^{\left (2 \, x\right )} + 4 \, {\left (a^{2} \cosh \left (x\right )^{3} + a^{2} \cosh \left (x\right ) + {\left (a^{2} \cosh \left (x\right )^{3} + a^{2} \cosh \left (x\right )\right )} e^{\left (2 \, x\right )}\right )} \sinh \left (x\right )} \]
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\[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\int \frac {1}{\left (a \cosh ^{2}{\left (x \right )}\right )^{\frac {3}{2}}}\, dx \]
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none
Time = 0.30 (sec) , antiderivative size = 41, normalized size of antiderivative = 0.98 \[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\frac {e^{\left (3 \, x\right )} - e^{x}}{a^{\frac {3}{2}} e^{\left (4 \, x\right )} + 2 \, a^{\frac {3}{2}} e^{\left (2 \, x\right )} + a^{\frac {3}{2}}} + \frac {\arctan \left (e^{x}\right )}{a^{\frac {3}{2}}} \]
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none
Time = 0.26 (sec) , antiderivative size = 56, normalized size of antiderivative = 1.33 \[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\frac {\frac {\pi + 2 \, \arctan \left (\frac {1}{2} \, {\left (e^{\left (2 \, x\right )} - 1\right )} e^{\left (-x\right )}\right )}{\sqrt {a}} - \frac {4 \, {\left (e^{\left (-x\right )} - e^{x}\right )}}{{\left ({\left (e^{\left (-x\right )} - e^{x}\right )}^{2} + 4\right )} \sqrt {a}}}{4 \, a} \]
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Timed out. \[ \int \frac {1}{\left (a \cosh ^2(x)\right )^{3/2}} \, dx=\int \frac {1}{{\left (a\,{\mathrm {cosh}\left (x\right )}^2\right )}^{3/2}} \,d x \]
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