Integrand size = 17, antiderivative size = 63 \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=\frac {1}{5 (1-x)^{5/2} (1+x)^{3/2}}+\frac {4 x}{15 (1-x)^{3/2} (1+x)^{3/2}}+\frac {8 x}{15 \sqrt {1-x} \sqrt {1+x}} \]
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Time = 0.01 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.176, Rules used = {47, 40, 39} \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=\frac {8 x}{15 \sqrt {1-x} \sqrt {x+1}}+\frac {4 x}{15 (1-x)^{3/2} (x+1)^{3/2}}+\frac {1}{5 (1-x)^{5/2} (x+1)^{3/2}} \]
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Rule 39
Rule 40
Rule 47
Rubi steps \begin{align*} \text {integral}& = \frac {1}{5 (1-x)^{5/2} (1+x)^{3/2}}+\frac {4}{5} \int \frac {1}{(1-x)^{5/2} (1+x)^{5/2}} \, dx \\ & = \frac {1}{5 (1-x)^{5/2} (1+x)^{3/2}}+\frac {4 x}{15 (1-x)^{3/2} (1+x)^{3/2}}+\frac {8}{15} \int \frac {1}{(1-x)^{3/2} (1+x)^{3/2}} \, dx \\ & = \frac {1}{5 (1-x)^{5/2} (1+x)^{3/2}}+\frac {4 x}{15 (1-x)^{3/2} (1+x)^{3/2}}+\frac {8 x}{15 \sqrt {1-x} \sqrt {1+x}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 40, normalized size of antiderivative = 0.63 \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=\frac {3+12 x-12 x^2-8 x^3+8 x^4}{15 (1-x)^{5/2} (1+x)^{3/2}} \]
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Time = 0.34 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.56
method | result | size |
gosper | \(\frac {8 x^{4}-8 x^{3}-12 x^{2}+12 x +3}{15 \left (1-x \right )^{\frac {5}{2}} \left (1+x \right )^{\frac {3}{2}}}\) | \(35\) |
risch | \(\frac {\sqrt {\left (1+x \right ) \left (1-x \right )}\, \left (8 x^{4}-8 x^{3}-12 x^{2}+12 x +3\right )}{15 \sqrt {1-x}\, \left (1+x \right )^{\frac {3}{2}} \left (-1+x \right )^{2} \sqrt {-\left (-1+x \right ) \left (1+x \right )}}\) | \(61\) |
default | \(\frac {1}{5 \left (1-x \right )^{\frac {5}{2}} \left (1+x \right )^{\frac {3}{2}}}+\frac {4}{15 \left (1-x \right )^{\frac {3}{2}} \left (1+x \right )^{\frac {3}{2}}}+\frac {4}{5 \sqrt {1-x}\, \left (1+x \right )^{\frac {3}{2}}}-\frac {8 \sqrt {1-x}}{15 \left (1+x \right )^{\frac {3}{2}}}-\frac {8 \sqrt {1-x}}{15 \sqrt {1+x}}\) | \(72\) |
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Time = 0.23 (sec) , antiderivative size = 84, normalized size of antiderivative = 1.33 \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=\frac {3 \, x^{5} - 3 \, x^{4} - 6 \, x^{3} + 6 \, x^{2} - {\left (8 \, x^{4} - 8 \, x^{3} - 12 \, x^{2} + 12 \, x + 3\right )} \sqrt {x + 1} \sqrt {-x + 1} + 3 \, x - 3}{15 \, {\left (x^{5} - x^{4} - 2 \, x^{3} + 2 \, x^{2} + x - 1\right )}} \]
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Result contains complex when optimal does not.
Time = 24.52 (sec) , antiderivative size = 425, normalized size of antiderivative = 6.75 \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=\begin {cases} - \frac {8 \sqrt {-1 + \frac {2}{x + 1}} \left (x + 1\right )^{4}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} + \frac {40 \sqrt {-1 + \frac {2}{x + 1}} \left (x + 1\right )^{3}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} - \frac {60 \sqrt {-1 + \frac {2}{x + 1}} \left (x + 1\right )^{2}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} + \frac {20 \sqrt {-1 + \frac {2}{x + 1}} \left (x + 1\right )}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} + \frac {5 \sqrt {-1 + \frac {2}{x + 1}}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} & \text {for}\: \frac {1}{\left |{x + 1}\right |} > \frac {1}{2} \\- \frac {8 i \sqrt {1 - \frac {2}{x + 1}} \left (x + 1\right )^{4}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} + \frac {40 i \sqrt {1 - \frac {2}{x + 1}} \left (x + 1\right )^{3}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} - \frac {60 i \sqrt {1 - \frac {2}{x + 1}} \left (x + 1\right )^{2}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} + \frac {20 i \sqrt {1 - \frac {2}{x + 1}} \left (x + 1\right )}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} + \frac {5 i \sqrt {1 - \frac {2}{x + 1}}}{- 120 x + 15 \left (x + 1\right )^{4} - 90 \left (x + 1\right )^{3} + 180 \left (x + 1\right )^{2} - 120} & \text {otherwise} \end {cases} \]
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Time = 0.20 (sec) , antiderivative size = 52, normalized size of antiderivative = 0.83 \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=\frac {8 \, x}{15 \, \sqrt {-x^{2} + 1}} + \frac {4 \, x}{15 \, {\left (-x^{2} + 1\right )}^{\frac {3}{2}}} - \frac {1}{5 \, {\left ({\left (-x^{2} + 1\right )}^{\frac {3}{2}} x - {\left (-x^{2} + 1\right )}^{\frac {3}{2}}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 119 vs. \(2 (45) = 90\).
Time = 0.31 (sec) , antiderivative size = 119, normalized size of antiderivative = 1.89 \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=\frac {{\left (\sqrt {2} - \sqrt {-x + 1}\right )}^{3}}{384 \, {\left (x + 1\right )}^{\frac {3}{2}}} + \frac {15 \, {\left (\sqrt {2} - \sqrt {-x + 1}\right )}}{128 \, \sqrt {x + 1}} - \frac {{\left (x + 1\right )}^{\frac {3}{2}} {\left (\frac {45 \, {\left (\sqrt {2} - \sqrt {-x + 1}\right )}^{2}}{x + 1} + 1\right )}}{384 \, {\left (\sqrt {2} - \sqrt {-x + 1}\right )}^{3}} - \frac {{\left ({\left (73 \, x - 247\right )} {\left (x + 1\right )} + 360\right )} \sqrt {x + 1} \sqrt {-x + 1}}{240 \, {\left (x - 1\right )}^{3}} \]
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Time = 0.44 (sec) , antiderivative size = 75, normalized size of antiderivative = 1.19 \[ \int \frac {1}{(1-x)^{7/2} (1+x)^{5/2}} \, dx=-\frac {12\,x\,\sqrt {1-x}+3\,\sqrt {1-x}-12\,x^2\,\sqrt {1-x}-8\,x^3\,\sqrt {1-x}+8\,x^4\,\sqrt {1-x}}{\left (15\,x+15\right )\,{\left (x-1\right )}^3\,\sqrt {x+1}} \]
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