Integrand size = 23, antiderivative size = 39 \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=2 \sqrt {c-a c x}+2 \sqrt {c} \text {arctanh}\left (\frac {\sqrt {c-a c x}}{\sqrt {c}}\right ) \]
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Time = 0.13 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.261, Rules used = {6302, 6265, 21, 81, 65, 214} \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=2 \sqrt {c} \text {arctanh}\left (\frac {\sqrt {c-a c x}}{\sqrt {c}}\right )+2 \sqrt {c-a c x} \]
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Rule 21
Rule 65
Rule 81
Rule 214
Rule 6265
Rule 6302
Rubi steps \begin{align*} \text {integral}& = -\int \frac {e^{2 \text {arctanh}(a x)} \sqrt {c-a c x}}{x} \, dx \\ & = -\int \frac {(1+a x) \sqrt {c-a c x}}{x (1-a x)} \, dx \\ & = -\left (c \int \frac {1+a x}{x \sqrt {c-a c x}} \, dx\right ) \\ & = 2 \sqrt {c-a c x}-c \int \frac {1}{x \sqrt {c-a c x}} \, dx \\ & = 2 \sqrt {c-a c x}+\frac {2 \text {Subst}\left (\int \frac {1}{\frac {1}{a}-\frac {x^2}{a c}} \, dx,x,\sqrt {c-a c x}\right )}{a} \\ & = 2 \sqrt {c-a c x}+2 \sqrt {c} \text {arctanh}\left (\frac {\sqrt {c-a c x}}{\sqrt {c}}\right ) \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.00 \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=2 \sqrt {c-a c x}+2 \sqrt {c} \text {arctanh}\left (\frac {\sqrt {c-a c x}}{\sqrt {c}}\right ) \]
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Time = 0.51 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.82
method | result | size |
derivativedivides | \(2 \,\operatorname {arctanh}\left (\frac {\sqrt {-a c x +c}}{\sqrt {c}}\right ) \sqrt {c}+2 \sqrt {-a c x +c}\) | \(32\) |
default | \(2 \,\operatorname {arctanh}\left (\frac {\sqrt {-a c x +c}}{\sqrt {c}}\right ) \sqrt {c}+2 \sqrt {-a c x +c}\) | \(32\) |
pseudoelliptic | \(2 \,\operatorname {arctanh}\left (\frac {\sqrt {-c \left (a x -1\right )}}{\sqrt {c}}\right ) \sqrt {c}+2 \sqrt {-c \left (a x -1\right )}\) | \(34\) |
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Time = 0.25 (sec) , antiderivative size = 82, normalized size of antiderivative = 2.10 \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=\left [\sqrt {c} \log \left (\frac {a c x - 2 \, \sqrt {-a c x + c} \sqrt {c} - 2 \, c}{x}\right ) + 2 \, \sqrt {-a c x + c}, -2 \, \sqrt {-c} \arctan \left (\frac {\sqrt {-a c x + c} \sqrt {-c}}{c}\right ) + 2 \, \sqrt {-a c x + c}\right ] \]
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Leaf count of result is larger than twice the leaf count of optimal. 80 vs. \(2 (34) = 68\).
Time = 3.96 (sec) , antiderivative size = 80, normalized size of antiderivative = 2.05 \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=\begin {cases} - \frac {2 c \operatorname {atan}{\left (\frac {\sqrt {- a c x + c}}{\sqrt {- c}} \right )}}{\sqrt {- c}} + 2 \sqrt {- a c x + c} & \text {for}\: a c \neq 0 \\\sqrt {c} \left (- \frac {3 a \left (\frac {\log {\left (\frac {2}{x} \right )}}{a} - \frac {\log {\left (2 a - \frac {2}{x} \right )}}{a}\right )}{2} + \frac {\log {\left (\frac {a}{x} - \frac {1}{x^{2}} \right )}}{2}\right ) & \text {otherwise} \end {cases} \]
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Time = 0.30 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.26 \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=-\sqrt {c} \log \left (\frac {\sqrt {-a c x + c} - \sqrt {c}}{\sqrt {-a c x + c} + \sqrt {c}}\right ) + 2 \, \sqrt {-a c x + c} \]
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Time = 0.27 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.03 \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=-2 \, c {\left (\frac {\arctan \left (\frac {\sqrt {-a c x + c}}{\sqrt {-c}}\right )}{\sqrt {-c}} - \frac {\sqrt {-a c x + c}}{c}\right )} \]
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Time = 4.10 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.79 \[ \int \frac {e^{2 \coth ^{-1}(a x)} \sqrt {c-a c x}}{x} \, dx=2\,\sqrt {c}\,\mathrm {atanh}\left (\frac {\sqrt {c-a\,c\,x}}{\sqrt {c}}\right )+2\,\sqrt {c-a\,c\,x} \]
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