Integrand size = 17, antiderivative size = 42 \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\frac {1}{3 (1-x)^{3/2} \sqrt {1+x}}+\frac {2 x}{3 \sqrt {1-x} \sqrt {1+x}} \]
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Time = 0.00 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {47, 39} \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\frac {2 x}{3 \sqrt {1-x} \sqrt {x+1}}+\frac {1}{3 (1-x)^{3/2} \sqrt {x+1}} \]
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Rule 39
Rule 47
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3 (1-x)^{3/2} \sqrt {1+x}}+\frac {2}{3} \int \frac {1}{(1-x)^{3/2} (1+x)^{3/2}} \, dx \\ & = \frac {1}{3 (1-x)^{3/2} \sqrt {1+x}}+\frac {2 x}{3 \sqrt {1-x} \sqrt {1+x}} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.71 \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\frac {1+2 x-2 x^2}{3 (1-x)^{3/2} \sqrt {1+x}} \]
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Time = 0.33 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.60
method | result | size |
gosper | \(-\frac {2 x^{2}-2 x -1}{3 \left (1-x \right )^{\frac {3}{2}} \sqrt {1+x}}\) | \(25\) |
default | \(\frac {1}{3 \left (1-x \right )^{\frac {3}{2}} \sqrt {1+x}}+\frac {2}{3 \sqrt {1-x}\, \sqrt {1+x}}-\frac {2 \sqrt {1-x}}{3 \sqrt {1+x}}\) | \(44\) |
risch | \(\frac {\sqrt {\left (1+x \right ) \left (1-x \right )}\, \left (2 x^{2}-2 x -1\right )}{3 \sqrt {1-x}\, \sqrt {1+x}\, \left (-1+x \right ) \sqrt {-\left (-1+x \right ) \left (1+x \right )}}\) | \(51\) |
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none
Time = 0.22 (sec) , antiderivative size = 54, normalized size of antiderivative = 1.29 \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\frac {x^{3} - x^{2} - {\left (2 \, x^{2} - 2 \, x - 1\right )} \sqrt {x + 1} \sqrt {-x + 1} - x + 1}{3 \, {\left (x^{3} - x^{2} - x + 1\right )}} \]
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Result contains complex when optimal does not.
Time = 3.19 (sec) , antiderivative size = 160, normalized size of antiderivative = 3.81 \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\begin {cases} - \frac {2 \sqrt {-1 + \frac {2}{x + 1}} \left (x + 1\right )^{2}}{- 12 x + 3 \left (x + 1\right )^{2}} + \frac {6 \sqrt {-1 + \frac {2}{x + 1}} \left (x + 1\right )}{- 12 x + 3 \left (x + 1\right )^{2}} - \frac {3 \sqrt {-1 + \frac {2}{x + 1}}}{- 12 x + 3 \left (x + 1\right )^{2}} & \text {for}\: \frac {1}{\left |{x + 1}\right |} > \frac {1}{2} \\- \frac {2 i \sqrt {1 - \frac {2}{x + 1}} \left (x + 1\right )^{2}}{- 12 x + 3 \left (x + 1\right )^{2}} + \frac {6 i \sqrt {1 - \frac {2}{x + 1}} \left (x + 1\right )}{- 12 x + 3 \left (x + 1\right )^{2}} - \frac {3 i \sqrt {1 - \frac {2}{x + 1}}}{- 12 x + 3 \left (x + 1\right )^{2}} & \text {otherwise} \end {cases} \]
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none
Time = 0.20 (sec) , antiderivative size = 40, normalized size of antiderivative = 0.95 \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\frac {2 \, x}{3 \, \sqrt {-x^{2} + 1}} - \frac {1}{3 \, {\left (\sqrt {-x^{2} + 1} x - \sqrt {-x^{2} + 1}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 67 vs. \(2 (30) = 60\).
Time = 0.31 (sec) , antiderivative size = 67, normalized size of antiderivative = 1.60 \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\frac {\sqrt {2} - \sqrt {-x + 1}}{8 \, \sqrt {x + 1}} - \frac {{\left (5 \, x - 7\right )} \sqrt {x + 1} \sqrt {-x + 1}}{12 \, {\left (x - 1\right )}^{2}} - \frac {\sqrt {x + 1}}{8 \, {\left (\sqrt {2} - \sqrt {-x + 1}\right )}} \]
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Time = 0.40 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.00 \[ \int \frac {1}{(1-x)^{5/2} (1+x)^{3/2}} \, dx=\frac {2\,x\,\sqrt {1-x}+\sqrt {1-x}-2\,x^2\,\sqrt {1-x}}{3\,{\left (x-1\right )}^2\,\sqrt {x+1}} \]
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