Integrand size = 22, antiderivative size = 77 \[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=-\frac {c^2 \sqrt {1-\frac {1}{a^2 x^2}}}{a}+c^2 \sqrt {1-\frac {1}{a^2 x^2}} x-\frac {3 c^2 \csc ^{-1}(a x)}{a}-\frac {3 c^2 \text {arctanh}\left (\sqrt {1-\frac {1}{a^2 x^2}}\right )}{a} \]
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Time = 0.18 (sec) , antiderivative size = 77, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.364, Rules used = {6312, 1821, 1823, 858, 222, 272, 65, 214} \[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=-\frac {3 c^2 \text {arctanh}\left (\sqrt {1-\frac {1}{a^2 x^2}}\right )}{a}+c^2 x \sqrt {1-\frac {1}{a^2 x^2}}-\frac {c^2 \sqrt {1-\frac {1}{a^2 x^2}}}{a}-\frac {3 c^2 \csc ^{-1}(a x)}{a} \]
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Rule 65
Rule 214
Rule 222
Rule 272
Rule 858
Rule 1821
Rule 1823
Rule 6312
Rubi steps \begin{align*} \text {integral}& = -\frac {\text {Subst}\left (\int \frac {\left (c-\frac {c x}{a}\right )^3}{x^2 \sqrt {1-\frac {x^2}{a^2}}} \, dx,x,\frac {1}{x}\right )}{c} \\ & = c^2 \sqrt {1-\frac {1}{a^2 x^2}} x+\frac {\text {Subst}\left (\int \frac {\frac {3 c^3}{a}-\frac {3 c^3 x}{a^2}+\frac {c^3 x^2}{a^3}}{x \sqrt {1-\frac {x^2}{a^2}}} \, dx,x,\frac {1}{x}\right )}{c} \\ & = -\frac {c^2 \sqrt {1-\frac {1}{a^2 x^2}}}{a}+c^2 \sqrt {1-\frac {1}{a^2 x^2}} x-\frac {a^2 \text {Subst}\left (\int \frac {-\frac {3 c^3}{a^3}+\frac {3 c^3 x}{a^4}}{x \sqrt {1-\frac {x^2}{a^2}}} \, dx,x,\frac {1}{x}\right )}{c} \\ & = -\frac {c^2 \sqrt {1-\frac {1}{a^2 x^2}}}{a}+c^2 \sqrt {1-\frac {1}{a^2 x^2}} x-\frac {\left (3 c^2\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1-\frac {x^2}{a^2}}} \, dx,x,\frac {1}{x}\right )}{a^2}+\frac {\left (3 c^2\right ) \text {Subst}\left (\int \frac {1}{x \sqrt {1-\frac {x^2}{a^2}}} \, dx,x,\frac {1}{x}\right )}{a} \\ & = -\frac {c^2 \sqrt {1-\frac {1}{a^2 x^2}}}{a}+c^2 \sqrt {1-\frac {1}{a^2 x^2}} x-\frac {3 c^2 \csc ^{-1}(a x)}{a}+\frac {\left (3 c^2\right ) \text {Subst}\left (\int \frac {1}{x \sqrt {1-\frac {x}{a^2}}} \, dx,x,\frac {1}{x^2}\right )}{2 a} \\ & = -\frac {c^2 \sqrt {1-\frac {1}{a^2 x^2}}}{a}+c^2 \sqrt {1-\frac {1}{a^2 x^2}} x-\frac {3 c^2 \csc ^{-1}(a x)}{a}-\left (3 a c^2\right ) \text {Subst}\left (\int \frac {1}{a^2-a^2 x^2} \, dx,x,\sqrt {1-\frac {1}{a^2 x^2}}\right ) \\ & = -\frac {c^2 \sqrt {1-\frac {1}{a^2 x^2}}}{a}+c^2 \sqrt {1-\frac {1}{a^2 x^2}} x-\frac {3 c^2 \csc ^{-1}(a x)}{a}-\frac {3 c^2 \text {arctanh}\left (\sqrt {1-\frac {1}{a^2 x^2}}\right )}{a} \\ \end{align*}
Time = 0.22 (sec) , antiderivative size = 55, normalized size of antiderivative = 0.71 \[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=\frac {c^2 \left (\sqrt {1-\frac {1}{a^2 x^2}} (-1+a x)-3 \arcsin \left (\frac {1}{a x}\right )-3 \text {arctanh}\left (\sqrt {1-\frac {1}{a^2 x^2}}\right )\right )}{a} \]
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Time = 0.15 (sec) , antiderivative size = 134, normalized size of antiderivative = 1.74
method | result | size |
risch | \(-\frac {\left (a x +1\right ) c^{2} \sqrt {\frac {a x -1}{a x +1}}}{x \,a^{2}}+\frac {\left (-\frac {3 a \ln \left (\frac {a^{2} x}{\sqrt {a^{2}}}+\sqrt {a^{2} x^{2}-1}\right )}{\sqrt {a^{2}}}+\sqrt {\left (a x -1\right ) \left (a x +1\right )}-3 \arctan \left (\frac {1}{\sqrt {a^{2} x^{2}-1}}\right )\right ) c^{2} \sqrt {\frac {a x -1}{a x +1}}\, \sqrt {\left (a x -1\right ) \left (a x +1\right )}}{a \left (a x -1\right )}\) | \(134\) |
default | \(\frac {\sqrt {\frac {a x -1}{a x +1}}\, \left (a x +1\right ) c^{2} \left (-\sqrt {a^{2} x^{2}-1}\, \sqrt {a^{2}}\, a^{2} x^{2}+\left (a^{2} x^{2}-1\right )^{\frac {3}{2}} \sqrt {a^{2}}-3 \sqrt {a^{2} x^{2}-1}\, \sqrt {a^{2}}\, a x +\ln \left (\frac {a^{2} x +\sqrt {a^{2} x^{2}-1}\, \sqrt {a^{2}}}{\sqrt {a^{2}}}\right ) a^{2} x -3 a x \sqrt {a^{2}}\, \arctan \left (\frac {1}{\sqrt {a^{2} x^{2}-1}}\right )+4 \sqrt {a^{2}}\, \sqrt {\left (a x -1\right ) \left (a x +1\right )}\, a x -4 \ln \left (\frac {a^{2} x +\sqrt {a^{2}}\, \sqrt {\left (a x -1\right ) \left (a x +1\right )}}{\sqrt {a^{2}}}\right ) a^{2} x \right )}{\sqrt {\left (a x -1\right ) \left (a x +1\right )}\, a^{2} x \sqrt {a^{2}}}\) | \(227\) |
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Time = 0.26 (sec) , antiderivative size = 113, normalized size of antiderivative = 1.47 \[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=\frac {6 \, a c^{2} x \arctan \left (\sqrt {\frac {a x - 1}{a x + 1}}\right ) - 3 \, a c^{2} x \log \left (\sqrt {\frac {a x - 1}{a x + 1}} + 1\right ) + 3 \, a c^{2} x \log \left (\sqrt {\frac {a x - 1}{a x + 1}} - 1\right ) + {\left (a^{2} c^{2} x^{2} - c^{2}\right )} \sqrt {\frac {a x - 1}{a x + 1}}}{a^{2} x} \]
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\[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=\frac {c^{2} \left (\int a^{2} \sqrt {\frac {a x}{a x + 1} - \frac {1}{a x + 1}}\, dx + \int \frac {\sqrt {\frac {a x}{a x + 1} - \frac {1}{a x + 1}}}{x^{2}}\, dx + \int \left (- \frac {2 a \sqrt {\frac {a x}{a x + 1} - \frac {1}{a x + 1}}}{x}\right )\, dx\right )}{a^{2}} \]
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Time = 0.28 (sec) , antiderivative size = 126, normalized size of antiderivative = 1.64 \[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=-{\left (\frac {4 \, c^{2} \left (\frac {a x - 1}{a x + 1}\right )^{\frac {3}{2}}}{\frac {{\left (a x - 1\right )}^{2} a^{2}}{{\left (a x + 1\right )}^{2}} - a^{2}} - \frac {6 \, c^{2} \arctan \left (\sqrt {\frac {a x - 1}{a x + 1}}\right )}{a^{2}} + \frac {3 \, c^{2} \log \left (\sqrt {\frac {a x - 1}{a x + 1}} + 1\right )}{a^{2}} - \frac {3 \, c^{2} \log \left (\sqrt {\frac {a x - 1}{a x + 1}} - 1\right )}{a^{2}}\right )} a \]
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Time = 0.28 (sec) , antiderivative size = 130, normalized size of antiderivative = 1.69 \[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=\frac {6 \, c^{2} \arctan \left (-x {\left | a \right |} + \sqrt {a^{2} x^{2} - 1}\right ) \mathrm {sgn}\left (a x + 1\right )}{a} + \frac {3 \, c^{2} \log \left ({\left | -x {\left | a \right |} + \sqrt {a^{2} x^{2} - 1} \right |}\right ) \mathrm {sgn}\left (a x + 1\right )}{{\left | a \right |}} + \frac {\sqrt {a^{2} x^{2} - 1} c^{2} \mathrm {sgn}\left (a x + 1\right )}{a} - \frac {2 \, c^{2} \mathrm {sgn}\left (a x + 1\right )}{{\left ({\left (x {\left | a \right |} - \sqrt {a^{2} x^{2} - 1}\right )}^{2} + 1\right )} {\left | a \right |}} \]
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Time = 0.08 (sec) , antiderivative size = 90, normalized size of antiderivative = 1.17 \[ \int e^{-\coth ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^2 \, dx=\frac {4\,c^2\,{\left (\frac {a\,x-1}{a\,x+1}\right )}^{3/2}}{a-\frac {a\,{\left (a\,x-1\right )}^2}{{\left (a\,x+1\right )}^2}}+\frac {6\,c^2\,\mathrm {atan}\left (\sqrt {\frac {a\,x-1}{a\,x+1}}\right )}{a}-\frac {6\,c^2\,\mathrm {atanh}\left (\sqrt {\frac {a\,x-1}{a\,x+1}}\right )}{a} \]
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