Integrand size = 17, antiderivative size = 49 \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=\frac {3}{8} \sqrt {1-x} x \sqrt {1+x}+\frac {1}{4} (1-x)^{3/2} x (1+x)^{3/2}+\frac {3 \arcsin (x)}{8} \]
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Time = 0.00 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.176, Rules used = {38, 41, 222} \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=\frac {3 \arcsin (x)}{8}+\frac {1}{4} (1-x)^{3/2} x (x+1)^{3/2}+\frac {3}{8} \sqrt {1-x} x \sqrt {x+1} \]
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Rule 38
Rule 41
Rule 222
Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} (1-x)^{3/2} x (1+x)^{3/2}+\frac {3}{4} \int \sqrt {1-x} \sqrt {1+x} \, dx \\ & = \frac {3}{8} \sqrt {1-x} x \sqrt {1+x}+\frac {1}{4} (1-x)^{3/2} x (1+x)^{3/2}+\frac {3}{8} \int \frac {1}{\sqrt {1-x} \sqrt {1+x}} \, dx \\ & = \frac {3}{8} \sqrt {1-x} x \sqrt {1+x}+\frac {1}{4} (1-x)^{3/2} x (1+x)^{3/2}+\frac {3}{8} \int \frac {1}{\sqrt {1-x^2}} \, dx \\ & = \frac {3}{8} \sqrt {1-x} x \sqrt {1+x}+\frac {1}{4} (1-x)^{3/2} x (1+x)^{3/2}+\frac {3}{8} \sin ^{-1}(x) \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.94 \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=-\frac {1}{8} x \sqrt {1-x^2} \left (-5+2 x^2\right )-\frac {3}{4} \arctan \left (\frac {\sqrt {1-x^2}}{1+x}\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. \(74\) vs. \(2(35)=70\).
Time = 0.33 (sec) , antiderivative size = 75, normalized size of antiderivative = 1.53
method | result | size |
risch | \(\frac {x \left (2 x^{2}-5\right ) \left (-1+x \right ) \sqrt {1+x}\, \sqrt {\left (1+x \right ) \left (1-x \right )}}{8 \sqrt {-\left (-1+x \right ) \left (1+x \right )}\, \sqrt {1-x}}+\frac {3 \sqrt {\left (1+x \right ) \left (1-x \right )}\, \arcsin \left (x \right )}{8 \sqrt {1+x}\, \sqrt {1-x}}\) | \(75\) |
default | \(\frac {\left (1-x \right )^{\frac {3}{2}} \left (1+x \right )^{\frac {5}{2}}}{4}+\frac {\sqrt {1-x}\, \left (1+x \right )^{\frac {5}{2}}}{4}-\frac {\sqrt {1-x}\, \left (1+x \right )^{\frac {3}{2}}}{8}-\frac {3 \sqrt {1-x}\, \sqrt {1+x}}{8}+\frac {3 \sqrt {\left (1+x \right ) \left (1-x \right )}\, \arcsin \left (x \right )}{8 \sqrt {1+x}\, \sqrt {1-x}}\) | \(85\) |
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none
Time = 0.22 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.94 \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=-\frac {1}{8} \, {\left (2 \, x^{3} - 5 \, x\right )} \sqrt {x + 1} \sqrt {-x + 1} - \frac {3}{4} \, \arctan \left (\frac {\sqrt {x + 1} \sqrt {-x + 1} - 1}{x}\right ) \]
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Result contains complex when optimal does not.
Time = 17.47 (sec) , antiderivative size = 212, normalized size of antiderivative = 4.33 \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=\begin {cases} - \frac {3 i \operatorname {acosh}{\left (\frac {\sqrt {2} \sqrt {x + 1}}{2} \right )}}{4} - \frac {i \left (x + 1\right )^{\frac {9}{2}}}{4 \sqrt {x - 1}} + \frac {5 i \left (x + 1\right )^{\frac {7}{2}}}{4 \sqrt {x - 1}} - \frac {13 i \left (x + 1\right )^{\frac {5}{2}}}{8 \sqrt {x - 1}} - \frac {i \left (x + 1\right )^{\frac {3}{2}}}{8 \sqrt {x - 1}} + \frac {3 i \sqrt {x + 1}}{4 \sqrt {x - 1}} & \text {for}\: \left |{x + 1}\right | > 2 \\\frac {3 \operatorname {asin}{\left (\frac {\sqrt {2} \sqrt {x + 1}}{2} \right )}}{4} + \frac {\left (x + 1\right )^{\frac {9}{2}}}{4 \sqrt {1 - x}} - \frac {5 \left (x + 1\right )^{\frac {7}{2}}}{4 \sqrt {1 - x}} + \frac {13 \left (x + 1\right )^{\frac {5}{2}}}{8 \sqrt {1 - x}} + \frac {\left (x + 1\right )^{\frac {3}{2}}}{8 \sqrt {1 - x}} - \frac {3 \sqrt {x + 1}}{4 \sqrt {1 - x}} & \text {otherwise} \end {cases} \]
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Time = 0.30 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.59 \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=\frac {1}{4} \, {\left (-x^{2} + 1\right )}^{\frac {3}{2}} x + \frac {3}{8} \, \sqrt {-x^{2} + 1} x + \frac {3}{8} \, \arcsin \left (x\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 101 vs. \(2 (35) = 70\).
Time = 0.30 (sec) , antiderivative size = 101, normalized size of antiderivative = 2.06 \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=-\frac {1}{24} \, {\left ({\left (2 \, {\left (3 \, x - 10\right )} {\left (x + 1\right )} + 43\right )} {\left (x + 1\right )} - 39\right )} \sqrt {x + 1} \sqrt {-x + 1} - \frac {1}{6} \, {\left ({\left (2 \, x - 5\right )} {\left (x + 1\right )} + 9\right )} \sqrt {x + 1} \sqrt {-x + 1} + \frac {1}{2} \, \sqrt {x + 1} {\left (x - 2\right )} \sqrt {-x + 1} + \sqrt {x + 1} \sqrt {-x + 1} + \frac {3}{4} \, \arcsin \left (\frac {1}{2} \, \sqrt {2} \sqrt {x + 1}\right ) \]
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Timed out. \[ \int (1-x)^{3/2} (1+x)^{3/2} \, dx=\int {\left (1-x\right )}^{3/2}\,{\left (x+1\right )}^{3/2} \,d x \]
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