Integrand size = 12, antiderivative size = 29 \[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {x}{a}-\frac {\tanh (c+d x)}{d (a+a \text {sech}(c+d x))} \]
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Time = 0.01 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {3862, 8} \[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {x}{a}-\frac {\tanh (c+d x)}{d (a \text {sech}(c+d x)+a)} \]
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Rule 8
Rule 3862
Rubi steps \begin{align*} \text {integral}& = -\frac {\tanh (c+d x)}{d (a+a \text {sech}(c+d x))}+\frac {\int a \, dx}{a^2} \\ & = \frac {x}{a}-\frac {\tanh (c+d x)}{d (a+a \text {sech}(c+d x))} \\ \end{align*}
Time = 0.37 (sec) , antiderivative size = 58, normalized size of antiderivative = 2.00 \[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {\text {sech}\left (\frac {c}{2}\right ) \text {sech}\left (\frac {1}{2} (c+d x)\right ) \left (d x \cosh \left (\frac {d x}{2}\right )+d x \cosh \left (c+\frac {d x}{2}\right )-2 \sinh \left (\frac {d x}{2}\right )\right )}{2 a d} \]
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Time = 0.18 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.79
method | result | size |
parallelrisch | \(\frac {d x -\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )}{d a}\) | \(23\) |
risch | \(\frac {x}{a}+\frac {2}{d a \left ({\mathrm e}^{d x +c}+1\right )}\) | \(25\) |
derivativedivides | \(\frac {-\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )-\ln \left (\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right )+\ln \left (1+\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{d a}\) | \(46\) |
default | \(\frac {-\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )-\ln \left (\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right )+\ln \left (1+\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{d a}\) | \(46\) |
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none
Time = 0.27 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.66 \[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {d x \cosh \left (d x + c\right ) + d x \sinh \left (d x + c\right ) + d x + 2}{a d \cosh \left (d x + c\right ) + a d \sinh \left (d x + c\right ) + a d} \]
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\[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {\int \frac {1}{\operatorname {sech}{\left (c + d x \right )} + 1}\, dx}{a} \]
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none
Time = 0.18 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.14 \[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {d x + c}{a d} - \frac {2}{{\left (a e^{\left (-d x - c\right )} + a\right )} d} \]
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Time = 0.27 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.00 \[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {\frac {d x + c}{a} + \frac {2}{a {\left (e^{\left (d x + c\right )} + 1\right )}}}{d} \]
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Time = 1.95 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.83 \[ \int \frac {1}{a+a \text {sech}(c+d x)} \, dx=\frac {x}{a}+\frac {2}{a\,d\,\left ({\mathrm {e}}^{c+d\,x}+1\right )} \]
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