Integrand size = 11, antiderivative size = 18 \[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=-\frac {1}{3} \left (1-\frac {1}{x^2}\right )^{3/2} x^3 \]
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Time = 0.04 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.273, Rules used = {6310, 6313, 270} \[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=-\frac {1}{3} \left (1-\frac {1}{x^2}\right )^{3/2} x^3 \]
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Rule 270
Rule 6310
Rule 6313
Rubi steps \begin{align*} \text {integral}& = -\int e^{\coth ^{-1}(x)} \left (1-\frac {1}{x}\right ) x^2 \, dx \\ & = \text {Subst}\left (\int \frac {\sqrt {1-x^2}}{x^4} \, dx,x,\frac {1}{x}\right ) \\ & = -\frac {1}{3} \left (1-\frac {1}{x^2}\right )^{3/2} x^3 \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.17 \[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=-\frac {1}{3} \sqrt {1-\frac {1}{x^2}} x \left (-1+x^2\right ) \]
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Time = 0.04 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.22
method | result | size |
gosper | \(-\frac {\left (x -1\right )^{2} \left (1+x \right )}{3 \sqrt {\frac {x -1}{1+x}}}\) | \(22\) |
default | \(-\frac {\left (x -1\right )^{2} \left (1+x \right )}{3 \sqrt {\frac {x -1}{1+x}}}\) | \(22\) |
risch | \(-\frac {\left (x^{2}-1\right ) \left (x -1\right )}{3 \sqrt {\frac {x -1}{1+x}}}\) | \(22\) |
trager | \(-\frac {\left (1+x \right ) \left (x^{2}-1\right ) \sqrt {-\frac {1-x}{1+x}}}{3}\) | \(25\) |
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none
Time = 0.24 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.33 \[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=-\frac {1}{3} \, {\left (x^{3} + x^{2} - x - 1\right )} \sqrt {\frac {x - 1}{x + 1}} \]
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\[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=- \int \left (- \frac {x}{\sqrt {\frac {x}{x + 1} - \frac {1}{x + 1}}}\right )\, dx - \int \frac {x^{2}}{\sqrt {\frac {x}{x + 1} - \frac {1}{x + 1}}}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 50 vs. \(2 (14) = 28\).
Time = 0.20 (sec) , antiderivative size = 50, normalized size of antiderivative = 2.78 \[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=\frac {8 \, \left (\frac {x - 1}{x + 1}\right )^{\frac {3}{2}}}{3 \, {\left (\frac {3 \, {\left (x - 1\right )}}{x + 1} - \frac {3 \, {\left (x - 1\right )}^{2}}{{\left (x + 1\right )}^{2}} + \frac {{\left (x - 1\right )}^{3}}{{\left (x + 1\right )}^{3}} - 1\right )}} \]
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none
Time = 0.25 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.83 \[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=-\frac {{\left (x^{2} - 1\right )}^{\frac {3}{2}}}{3 \, \mathrm {sgn}\left (x + 1\right )} \]
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Time = 4.45 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00 \[ \int e^{\coth ^{-1}(x)} (1-x) x \, dx=-\frac {{\left (\frac {x-1}{x+1}\right )}^{3/2}\,{\left (x+1\right )}^3}{3} \]
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