Integrand size = 27, antiderivative size = 47 \[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=\frac {\sqrt {c-\frac {c}{a^2 x^2}} (1-a x)^2}{2 a \sqrt {1-\frac {1}{a^2 x^2}} x^2} \]
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Time = 0.18 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {6332, 6328, 37} \[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=\frac {(1-a x)^2 \sqrt {c-\frac {c}{a^2 x^2}}}{2 a x^2 \sqrt {1-\frac {1}{a^2 x^2}}} \]
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Rule 37
Rule 6328
Rule 6332
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {c-\frac {c}{a^2 x^2}} \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {1-\frac {1}{a^2 x^2}}}{x^2} \, dx}{\sqrt {1-\frac {1}{a^2 x^2}}} \\ & = \frac {\sqrt {c-\frac {c}{a^2 x^2}} \int \frac {-1+a x}{x^3} \, dx}{a \sqrt {1-\frac {1}{a^2 x^2}}} \\ & = \frac {\sqrt {c-\frac {c}{a^2 x^2}} (1-a x)^2}{2 a \sqrt {1-\frac {1}{a^2 x^2}} x^2} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.98 \[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=\frac {\sqrt {c-\frac {c}{a^2 x^2}} \left (\frac {1}{2 a x^2}-\frac {1}{x}\right )}{\sqrt {1-\frac {1}{a^2 x^2}}} \]
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Time = 0.05 (sec) , antiderivative size = 53, normalized size of antiderivative = 1.13
method | result | size |
gosper | \(-\frac {\left (2 a x -1\right ) \sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2} x^{2}}}\, \sqrt {\frac {a x -1}{a x +1}}}{2 \left (a x -1\right ) x}\) | \(53\) |
default | \(-\frac {\left (2 a x -1\right ) \sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2} x^{2}}}\, \sqrt {\frac {a x -1}{a x +1}}}{2 \left (a x -1\right ) x}\) | \(53\) |
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Time = 0.24 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.45 \[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=-\frac {\sqrt {a^{2} c} {\left (2 \, a x - 1\right )}}{2 \, a^{2} x^{2}} \]
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Timed out. \[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=\text {Timed out} \]
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\[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=\int { \frac {\sqrt {c - \frac {c}{a^{2} x^{2}}} \sqrt {\frac {a x - 1}{a x + 1}}}{x^{2}} \,d x } \]
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\[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=\int { \frac {\sqrt {c - \frac {c}{a^{2} x^{2}}} \sqrt {\frac {a x - 1}{a x + 1}}}{x^{2}} \,d x } \]
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Time = 4.11 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.34 \[ \int \frac {e^{-\coth ^{-1}(a x)} \sqrt {c-\frac {c}{a^2 x^2}}}{x^2} \, dx=\frac {\left (x\,\sqrt {c-\frac {c}{a^2\,x^2}}-\frac {\sqrt {c-\frac {c}{a^2\,x^2}}}{2\,a}\right )\,\sqrt {\frac {a\,x-1}{a\,x+1}}}{\frac {x}{a}-x^2} \]
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