Integrand size = 10, antiderivative size = 13 \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=\frac {\tanh (x)}{\sqrt {a \text {sech}^2(x)}} \]
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Time = 0.02 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {4207, 197} \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=\frac {\tanh (x)}{\sqrt {a \text {sech}^2(x)}} \]
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Rule 197
Rule 4207
Rubi steps \begin{align*} \text {integral}& = a \text {Subst}\left (\int \frac {1}{\left (a-a x^2\right )^{3/2}} \, dx,x,\tanh (x)\right ) \\ & = \frac {\tanh (x)}{\sqrt {a \text {sech}^2(x)}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00 \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=\frac {\tanh (x)}{\sqrt {a \text {sech}^2(x)}} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(57\) vs. \(2(11)=22\).
Time = 0.16 (sec) , antiderivative size = 58, normalized size of antiderivative = 4.46
method | result | size |
risch | \(\frac {{\mathrm e}^{2 x}}{2 \sqrt {\frac {{\mathrm e}^{2 x} a}{\left (1+{\mathrm e}^{2 x}\right )^{2}}}\, \left (1+{\mathrm e}^{2 x}\right )}-\frac {1}{2 \left (1+{\mathrm e}^{2 x}\right ) \sqrt {\frac {{\mathrm e}^{2 x} a}{\left (1+{\mathrm e}^{2 x}\right )^{2}}}}\) | \(58\) |
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Leaf count of result is larger than twice the leaf count of optimal. 79 vs. \(2 (11) = 22\).
Time = 0.25 (sec) , antiderivative size = 79, normalized size of antiderivative = 6.08 \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=\frac {{\left ({\left (e^{\left (2 \, x\right )} + 1\right )} \sinh \left (x\right )^{2} + \cosh \left (x\right )^{2} + {\left (\cosh \left (x\right )^{2} - 1\right )} e^{\left (2 \, x\right )} + 2 \, {\left (\cosh \left (x\right ) e^{\left (2 \, x\right )} + \cosh \left (x\right )\right )} \sinh \left (x\right ) - 1\right )} \sqrt {\frac {a}{e^{\left (4 \, x\right )} + 2 \, e^{\left (2 \, x\right )} + 1}} e^{x}}{2 \, {\left (a \cosh \left (x\right ) e^{x} + a e^{x} \sinh \left (x\right )\right )}} \]
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Time = 0.30 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.92 \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=\frac {\tanh {\left (x \right )}}{\sqrt {a \operatorname {sech}^{2}{\left (x \right )}}} \]
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none
Time = 0.29 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.31 \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=-\frac {e^{\left (-x\right )}}{2 \, \sqrt {a}} + \frac {e^{x}}{2 \, \sqrt {a}} \]
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none
Time = 0.27 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.08 \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=-\frac {e^{\left (-x\right )} - e^{x}}{2 \, \sqrt {a}} \]
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Time = 1.96 (sec) , antiderivative size = 33, normalized size of antiderivative = 2.54 \[ \int \frac {1}{\sqrt {a \text {sech}^2(x)}} \, dx=-\frac {\left (\frac {{\mathrm {e}}^{-2\,x}}{2}-\frac {{\mathrm {e}}^{2\,x}}{2}\right )\,\sqrt {\frac {1}{{\left (\frac {{\mathrm {e}}^{-x}}{2}+\frac {{\mathrm {e}}^x}{2}\right )}^2}}}{2\,\sqrt {a}} \]
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