Integrand size = 14, antiderivative size = 34 \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=-\frac {x^2}{4}+\frac {1}{2} x \sqrt {1-x^2} \arcsin (x)+\frac {\arcsin (x)^2}{4} \]
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Time = 0.02 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {4741, 4737, 30} \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=\frac {1}{2} \sqrt {1-x^2} x \arcsin (x)+\frac {\arcsin (x)^2}{4}-\frac {x^2}{4} \]
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Rule 30
Rule 4737
Rule 4741
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} x \sqrt {1-x^2} \arcsin (x)-\frac {\int x \, dx}{2}+\frac {1}{2} \int \frac {\arcsin (x)}{\sqrt {1-x^2}} \, dx \\ & = -\frac {x^2}{4}+\frac {1}{2} x \sqrt {1-x^2} \arcsin (x)+\frac {\arcsin (x)^2}{4} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.88 \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=\frac {1}{4} \left (-x^2+2 x \sqrt {1-x^2} \arcsin (x)+\arcsin (x)^2\right ) \]
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Time = 0.12 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.91
method | result | size |
default | \(\frac {\arcsin \left (x \right ) \left (\sqrt {-x^{2}+1}\, x +\arcsin \left (x \right )\right )}{2}-\frac {\arcsin \left (x \right )^{2}}{4}-\frac {x^{2}}{4}\) | \(31\) |
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Time = 0.25 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.76 \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=\frac {1}{2} \, \sqrt {-x^{2} + 1} x \arcsin \left (x\right ) - \frac {1}{4} \, x^{2} + \frac {1}{4} \, \arcsin \left (x\right )^{2} \]
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Time = 0.54 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.91 \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=- \frac {x^{2}}{4} + \left (\frac {x \sqrt {1 - x^{2}}}{2} + \frac {\operatorname {asin}{\left (x \right )}}{2}\right ) \operatorname {asin}{\left (x \right )} - \frac {\operatorname {asin}^{2}{\left (x \right )}}{4} \]
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Time = 0.27 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.88 \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=-\frac {1}{4} \, x^{2} + \frac {1}{2} \, {\left (\sqrt {-x^{2} + 1} x + \arcsin \left (x\right )\right )} \arcsin \left (x\right ) - \frac {1}{4} \, \arcsin \left (x\right )^{2} \]
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Time = 0.29 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.79 \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=\frac {1}{2} \, \sqrt {-x^{2} + 1} x \arcsin \left (x\right ) - \frac {1}{4} \, x^{2} + \frac {1}{4} \, \arcsin \left (x\right )^{2} + \frac {1}{8} \]
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Timed out. \[ \int \sqrt {1-x^2} \arcsin (x) \, dx=\int \mathrm {asin}\left (x\right )\,\sqrt {1-x^2} \,d x \]
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