Integrand size = 24, antiderivative size = 34 \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=\frac {\sinh (c+d x)}{a d}-\frac {i \sinh ^2(c+d x)}{2 a d} \]
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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 = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.042, Rules used = {2746} \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=\frac {\sinh (c+d x)}{a d}-\frac {i \sinh ^2(c+d x)}{2 a d} \]
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Rule 2746
Rubi steps \begin{align*} \text {integral}& = -\frac {i \text {Subst}(\int (a-x) \, dx,x,i a \sinh (c+d x))}{a^3 d} \\ & = \frac {\sinh (c+d x)}{a d}-\frac {i \sinh ^2(c+d x)}{2 a d} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.82 \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=\frac {(2-i \sinh (c+d x)) \sinh (c+d x)}{2 a d} \]
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Time = 6.34 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.88
method | result | size |
derivativedivides | \(-\frac {i \left (\frac {\sinh \left (d x +c \right )^{2}}{2}+i \sinh \left (d x +c \right )\right )}{a d}\) | \(30\) |
default | \(-\frac {i \left (\frac {\sinh \left (d x +c \right )^{2}}{2}+i \sinh \left (d x +c \right )\right )}{a d}\) | \(30\) |
risch | \(-\frac {i {\mathrm e}^{2 d x +2 c}}{8 a d}+\frac {{\mathrm e}^{d x +c}}{2 a d}-\frac {{\mathrm e}^{-d x -c}}{2 a d}-\frac {i {\mathrm e}^{-2 d x -2 c}}{8 a d}\) | \(69\) |
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none
Time = 0.24 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.44 \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=\frac {{\left (-i \, e^{\left (4 \, d x + 4 \, c\right )} + 4 \, e^{\left (3 \, d x + 3 \, c\right )} - 4 \, e^{\left (d x + c\right )} - i\right )} e^{\left (-2 \, d x - 2 \, c\right )}}{8 \, a d} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 133 vs. \(2 (24) = 48\).
Time = 0.17 (sec) , antiderivative size = 133, normalized size of antiderivative = 3.91 \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=\begin {cases} \frac {\left (- 32 i a^{3} d^{3} e^{5 c} e^{2 d x} + 128 a^{3} d^{3} e^{4 c} e^{d x} - 128 a^{3} d^{3} e^{2 c} e^{- d x} - 32 i a^{3} d^{3} e^{c} e^{- 2 d x}\right ) e^{- 3 c}}{256 a^{4} d^{4}} & \text {for}\: a^{4} d^{4} e^{3 c} \neq 0 \\\frac {x \left (- i e^{4 c} + 2 e^{3 c} + 2 e^{c} + i\right ) e^{- 2 c}}{4 a} & \text {otherwise} \end {cases} \]
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none
Time = 0.22 (sec) , antiderivative size = 60, normalized size of antiderivative = 1.76 \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=-\frac {i \, {\left (4 i \, e^{\left (-d x - c\right )} + 1\right )} e^{\left (2 \, d x + 2 \, c\right )}}{8 \, a d} - \frac {i \, {\left (-4 i \, e^{\left (-d x - c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )}}{8 \, a d} \]
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none
Time = 0.28 (sec) , antiderivative size = 55, normalized size of antiderivative = 1.62 \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=-\frac {\frac {{\left (4 \, e^{\left (d x + c\right )} + i\right )} e^{\left (-2 \, d x - 2 \, c\right )}}{a} + \frac {i \, a e^{\left (2 \, d x + 2 \, c\right )} - 4 \, a e^{\left (d x + c\right )}}{a^{2}}}{8 \, d} \]
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Time = 1.04 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.85 \[ \int \frac {\cosh ^3(c+d x)}{a+i a \sinh (c+d x)} \, dx=\frac {4\,\mathrm {sinh}\left (c+d\,x\right )-\mathrm {cosh}\left (2\,c+2\,d\,x\right )\,1{}\mathrm {i}}{4\,a\,d} \]
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