Integrand size = 20, antiderivative size = 17 \[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=\frac {\sqrt {1+x^2}}{1-x} \]
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Time = 0.01 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.050, Rules used = {817} \[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=\frac {\sqrt {x^2+1}}{1-x} \]
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Rule 817
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {1+x^2}}{1-x} \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.00 \[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=\frac {\sqrt {1+x^2}}{1-x} \]
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Time = 0.12 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88
method | result | size |
gosper | \(-\frac {\sqrt {x^{2}+1}}{-1+x}\) | \(15\) |
trager | \(-\frac {\sqrt {x^{2}+1}}{-1+x}\) | \(15\) |
risch | \(-\frac {\sqrt {x^{2}+1}}{-1+x}\) | \(15\) |
default | \(-\frac {\sqrt {\left (-1+x \right )^{2}+2 x}}{-1+x}\) | \(19\) |
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none
Time = 0.23 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.00 \[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=-\frac {x + \sqrt {x^{2} + 1} - 1}{x - 1} \]
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\[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=\int \frac {x + 1}{\left (x - 1\right )^{2} \sqrt {x^{2} + 1}}\, dx \]
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none
Time = 0.27 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=-\frac {\sqrt {x^{2} + 1}}{x - 1} \]
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Leaf count of result is larger than twice the leaf count of optimal. 35 vs. \(2 (14) = 28\).
Time = 0.29 (sec) , antiderivative size = 35, normalized size of antiderivative = 2.06 \[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=-\frac {\sqrt {\frac {2}{x - 1} + \frac {2}{{\left (x - 1\right )}^{2}} + 1}}{\mathrm {sgn}\left (\frac {1}{x - 1}\right )} + \mathrm {sgn}\left (\frac {1}{x - 1}\right ) \]
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Time = 0.14 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int \frac {1+x}{(1-x)^2 \sqrt {1+x^2}} \, dx=-\frac {\sqrt {x^2+1}}{x-1} \]
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