Integrand size = 10, antiderivative size = 24 \[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=a \sqrt {1-\frac {1}{a^2 x^2}}-a \csc ^{-1}(a x) \]
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Time = 0.02 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {6304, 655, 222} \[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=a \sqrt {1-\frac {1}{a^2 x^2}}-a \csc ^{-1}(a x) \]
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Rule 222
Rule 655
Rule 6304
Rubi steps \begin{align*} \text {integral}& = -\text {Subst}\left (\int \frac {1+\frac {x}{a}}{\sqrt {1-\frac {x^2}{a^2}}} \, dx,x,\frac {1}{x}\right ) \\ & = a \sqrt {1-\frac {1}{a^2 x^2}}-\text {Subst}\left (\int \frac {1}{\sqrt {1-\frac {x^2}{a^2}}} \, dx,x,\frac {1}{x}\right ) \\ & = a \sqrt {1-\frac {1}{a^2 x^2}}-a \csc ^{-1}(a x) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.12 \[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=a \left (\sqrt {1-\frac {1}{a^2 x^2}}-\arcsin \left (\frac {1}{a x}\right )\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. \(75\) vs. \(2(22)=44\).
Time = 0.13 (sec) , antiderivative size = 76, normalized size of antiderivative = 3.17
method | result | size |
risch | \(\frac {a x -1}{x \sqrt {\frac {a x -1}{a x +1}}}-\frac {a \arctan \left (\frac {1}{\sqrt {a^{2} x^{2}-1}}\right ) \sqrt {\left (a x -1\right ) \left (a x +1\right )}}{\sqrt {\frac {a x -1}{a x +1}}\, \left (a x +1\right )}\) | \(76\) |
default | \(-\frac {\left (a x -1\right ) \left (-\sqrt {a^{2} x^{2}-1}\, \sqrt {a^{2}}\, a^{2} x^{2}+\left (a^{2} x^{2}-1\right )^{\frac {3}{2}} \sqrt {a^{2}}+\sqrt {a^{2} x^{2}-1}\, \sqrt {a^{2}}\, a x +\ln \left (\frac {a^{2} x +\sqrt {a^{2} x^{2}-1}\, \sqrt {a^{2}}}{\sqrt {a^{2}}}\right ) a^{2} x +a x \sqrt {a^{2}}\, \arctan \left (\frac {1}{\sqrt {a^{2} x^{2}-1}}\right )-\sqrt {a^{2}}\, \sqrt {\left (a x -1\right ) \left (a x +1\right )}\, a x -\ln \left (\frac {a^{2} x +\sqrt {a^{2}}\, \sqrt {\left (a x -1\right ) \left (a x +1\right )}}{\sqrt {a^{2}}}\right ) a^{2} x \right )}{\sqrt {\frac {a x -1}{a x +1}}\, \sqrt {\left (a x -1\right ) \left (a x +1\right )}\, x \sqrt {a^{2}}}\) | \(220\) |
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Leaf count of result is larger than twice the leaf count of optimal. 46 vs. \(2 (22) = 44\).
Time = 0.25 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.92 \[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=\frac {2 \, a x \arctan \left (\sqrt {\frac {a x - 1}{a x + 1}}\right ) + {\left (a x + 1\right )} \sqrt {\frac {a x - 1}{a x + 1}}}{x} \]
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\[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=\int \frac {1}{x^{2} \sqrt {\frac {a x - 1}{a x + 1}}}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 53 vs. \(2 (22) = 44\).
Time = 0.28 (sec) , antiderivative size = 53, normalized size of antiderivative = 2.21 \[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=2 \, a {\left (\frac {\sqrt {\frac {a x - 1}{a x + 1}}}{\frac {a x - 1}{a x + 1} + 1} + \arctan \left (\sqrt {\frac {a x - 1}{a x + 1}}\right )\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 66 vs. \(2 (22) = 44\).
Time = 0.26 (sec) , antiderivative size = 66, normalized size of antiderivative = 2.75 \[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=\frac {2 \, a \arctan \left (-x {\left | a \right |} + \sqrt {a^{2} x^{2} - 1}\right )}{\mathrm {sgn}\left (a x + 1\right )} + \frac {2 \, {\left | a \right |}}{{\left ({\left (x {\left | a \right |} - \sqrt {a^{2} x^{2} - 1}\right )}^{2} + 1\right )} \mathrm {sgn}\left (a x + 1\right )} \]
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Time = 0.09 (sec) , antiderivative size = 55, normalized size of antiderivative = 2.29 \[ \int \frac {e^{\coth ^{-1}(a x)}}{x^2} \, dx=2\,a\,\mathrm {atan}\left (\sqrt {\frac {a\,x-1}{a\,x+1}}\right )+\frac {2\,a\,\sqrt {\frac {a\,x-1}{a\,x+1}}}{\frac {a\,x-1}{a\,x+1}+1} \]
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