Integrand size = 20, antiderivative size = 59 \[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=\frac {2 \sqrt {1+x}}{\sqrt {1-x}}+\frac {(1+x)^{3/2}}{3 (1-x)^{3/2}}-\text {arctanh}\left (\sqrt {1-x} \sqrt {1+x}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 59, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {98, 96, 94, 212} \[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=-\text {arctanh}\left (\sqrt {1-x} \sqrt {x+1}\right )+\frac {(x+1)^{3/2}}{3 (1-x)^{3/2}}+\frac {2 \sqrt {x+1}}{\sqrt {1-x}} \]
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Rule 94
Rule 96
Rule 98
Rule 212
Rubi steps \begin{align*} \text {integral}& = \frac {(1+x)^{3/2}}{3 (1-x)^{3/2}}+\int \frac {\sqrt {1+x}}{(1-x)^{3/2} x} \, dx \\ & = \frac {2 \sqrt {1+x}}{\sqrt {1-x}}+\frac {(1+x)^{3/2}}{3 (1-x)^{3/2}}+\int \frac {1}{\sqrt {1-x} x \sqrt {1+x}} \, dx \\ & = \frac {2 \sqrt {1+x}}{\sqrt {1-x}}+\frac {(1+x)^{3/2}}{3 (1-x)^{3/2}}-\text {Subst}\left (\int \frac {1}{1-x^2} \, dx,x,\sqrt {1-x} \sqrt {1+x}\right ) \\ & = \frac {2 \sqrt {1+x}}{\sqrt {1-x}}+\frac {(1+x)^{3/2}}{3 (1-x)^{3/2}}-\tanh ^{-1}\left (\sqrt {1-x} \sqrt {1+x}\right ) \\ \end{align*}
Time = 0.10 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.78 \[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=\frac {(7-5 x) \sqrt {1+x}}{3 (1-x)^{3/2}}-2 \text {arctanh}\left (\frac {\sqrt {1+x}}{\sqrt {1-x}}\right ) \]
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Time = 0.60 (sec) , antiderivative size = 87, normalized size of antiderivative = 1.47
method | result | size |
risch | \(\frac {\left (5 x^{2}-2 x -7\right ) \sqrt {\left (1+x \right ) \left (1-x \right )}}{3 \left (-1+x \right ) \sqrt {-\left (-1+x \right ) \left (1+x \right )}\, \sqrt {1-x}\, \sqrt {1+x}}-\frac {\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{2}+1}}\right ) \sqrt {\left (1+x \right ) \left (1-x \right )}}{\sqrt {1-x}\, \sqrt {1+x}}\) | \(87\) |
default | \(-\frac {\left (3 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{2}+1}}\right ) x^{2}-6 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{2}+1}}\right ) x +5 x \sqrt {-x^{2}+1}+3 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{2}+1}}\right )-7 \sqrt {-x^{2}+1}\right ) \sqrt {1-x}\, \sqrt {1+x}}{3 \left (-1+x \right )^{2} \sqrt {-x^{2}+1}}\) | \(93\) |
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Time = 0.22 (sec) , antiderivative size = 71, normalized size of antiderivative = 1.20 \[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=\frac {7 \, x^{2} - {\left (5 \, x - 7\right )} \sqrt {x + 1} \sqrt {-x + 1} + 3 \, {\left (x^{2} - 2 \, x + 1\right )} \log \left (\frac {\sqrt {x + 1} \sqrt {-x + 1} - 1}{x}\right ) - 14 \, x + 7}{3 \, {\left (x^{2} - 2 \, x + 1\right )}} \]
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\[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=\int \frac {\sqrt {x + 1}}{x \left (1 - x\right )^{\frac {5}{2}}}\, dx \]
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Time = 0.20 (sec) , antiderivative size = 70, normalized size of antiderivative = 1.19 \[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=\frac {5 \, x}{3 \, \sqrt {-x^{2} + 1}} + \frac {1}{\sqrt {-x^{2} + 1}} + \frac {4 \, x}{3 \, {\left (-x^{2} + 1\right )}^{\frac {3}{2}}} + \frac {4}{3 \, {\left (-x^{2} + 1\right )}^{\frac {3}{2}}} - \log \left (\frac {2 \, \sqrt {-x^{2} + 1}}{{\left | x \right |}} + \frac {2}{{\left | x \right |}}\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 117 vs. \(2 (45) = 90\).
Time = 0.32 (sec) , antiderivative size = 117, normalized size of antiderivative = 1.98 \[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=-\frac {{\left (5 \, x - 7\right )} \sqrt {x + 1} \sqrt {-x + 1}}{3 \, {\left (x - 1\right )}^{2}} - \log \left ({\left | -\frac {\sqrt {2} - \sqrt {-x + 1}}{\sqrt {x + 1}} + \frac {\sqrt {x + 1}}{\sqrt {2} - \sqrt {-x + 1}} + 2 \right |}\right ) + \log \left ({\left | -\frac {\sqrt {2} - \sqrt {-x + 1}}{\sqrt {x + 1}} + \frac {\sqrt {x + 1}}{\sqrt {2} - \sqrt {-x + 1}} - 2 \right |}\right ) \]
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Timed out. \[ \int \frac {\sqrt {1+x}}{(1-x)^{5/2} x} \, dx=\int \frac {\sqrt {x+1}}{x\,{\left (1-x\right )}^{5/2}} \,d x \]
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