Integrand size = 17, antiderivative size = 61 \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=\frac {3 x^2}{16}+\frac {x^4}{16}-\frac {3}{8} x \sqrt {1-x^2} \arcsin (x)-\frac {1}{4} x^3 \sqrt {1-x^2} \arcsin (x)+\frac {3 \arcsin (x)^2}{16} \]
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Time = 0.08 (sec) , antiderivative size = 61, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.176, Rules used = {4795, 4737, 30} \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=-\frac {3}{8} \sqrt {1-x^2} x \arcsin (x)-\frac {1}{4} \sqrt {1-x^2} x^3 \arcsin (x)+\frac {3 \arcsin (x)^2}{16}+\frac {x^4}{16}+\frac {3 x^2}{16} \]
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Rule 30
Rule 4737
Rule 4795
Rubi steps \begin{align*} \text {integral}& = -\frac {1}{4} x^3 \sqrt {1-x^2} \arcsin (x)+\frac {\int x^3 \, dx}{4}+\frac {3}{4} \int \frac {x^2 \arcsin (x)}{\sqrt {1-x^2}} \, dx \\ & = \frac {x^4}{16}-\frac {3}{8} x \sqrt {1-x^2} \arcsin (x)-\frac {1}{4} x^3 \sqrt {1-x^2} \arcsin (x)+\frac {3 \int x \, dx}{8}+\frac {3}{8} \int \frac {\arcsin (x)}{\sqrt {1-x^2}} \, dx \\ & = \frac {3 x^2}{16}+\frac {x^4}{16}-\frac {3}{8} x \sqrt {1-x^2} \arcsin (x)-\frac {1}{4} x^3 \sqrt {1-x^2} \arcsin (x)+\frac {3 \arcsin (x)^2}{16} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 43, normalized size of antiderivative = 0.70 \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=\frac {1}{16} \left (x^2 \left (3+x^2\right )-2 x \sqrt {1-x^2} \left (3+2 x^2\right ) \arcsin (x)+3 \arcsin (x)^2\right ) \]
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Time = 0.45 (sec) , antiderivative size = 54, normalized size of antiderivative = 0.89
method | result | size |
default | \(\frac {\arcsin \left (x \right ) \left (-2 \sqrt {-x^{2}+1}\, x^{3}-3 x \sqrt {-x^{2}+1}+3 \arcsin \left (x \right )\right )}{8}-\frac {3 \arcsin \left (x \right )^{2}}{16}+\frac {\left (2 x^{2}+3\right )^{2}}{64}\) | \(54\) |
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Time = 0.25 (sec) , antiderivative size = 39, normalized size of antiderivative = 0.64 \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=\frac {1}{16} \, x^{4} - \frac {1}{8} \, {\left (2 \, x^{3} + 3 \, x\right )} \sqrt {-x^{2} + 1} \arcsin \left (x\right ) + \frac {3}{16} \, x^{2} + \frac {3}{16} \, \arcsin \left (x\right )^{2} \]
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Time = 0.21 (sec) , antiderivative size = 53, normalized size of antiderivative = 0.87 \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=\frac {x^{4}}{16} - \frac {x^{3} \sqrt {1 - x^{2}} \operatorname {asin}{\left (x \right )}}{4} + \frac {3 x^{2}}{16} - \frac {3 x \sqrt {1 - x^{2}} \operatorname {asin}{\left (x \right )}}{8} + \frac {3 \operatorname {asin}^{2}{\left (x \right )}}{16} \]
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Time = 0.29 (sec) , antiderivative size = 52, normalized size of antiderivative = 0.85 \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=\frac {1}{16} \, x^{4} + \frac {3}{16} \, x^{2} - \frac {1}{8} \, {\left (2 \, \sqrt {-x^{2} + 1} x^{3} + 3 \, \sqrt {-x^{2} + 1} x - 3 \, \arcsin \left (x\right )\right )} \arcsin \left (x\right ) - \frac {3}{16} \, \arcsin \left (x\right )^{2} \]
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Time = 0.33 (sec) , antiderivative size = 50, normalized size of antiderivative = 0.82 \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=\frac {1}{4} \, {\left (-x^{2} + 1\right )}^{\frac {3}{2}} x \arcsin \left (x\right ) - \frac {5}{8} \, \sqrt {-x^{2} + 1} x \arcsin \left (x\right ) + \frac {1}{16} \, {\left (x^{2} - 1\right )}^{2} + \frac {5}{16} \, x^{2} + \frac {3}{16} \, \arcsin \left (x\right )^{2} - \frac {23}{128} \]
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Timed out. \[ \int \frac {x^4 \arcsin (x)}{\sqrt {1-x^2}} \, dx=\int \frac {x^4\,\mathrm {asin}\left (x\right )}{\sqrt {1-x^2}} \,d x \]
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