Integrand size = 21, antiderivative size = 64 \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=-\frac {6 x}{a}+\frac {6 \sqrt {1+a^2 x^2} \text {arcsinh}(a x)}{a^2}-\frac {3 x \text {arcsinh}(a x)^2}{a}+\frac {\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^3}{a^2} \]
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Time = 0.09 (sec) , antiderivative size = 64, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {5798, 5772, 8} \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=\frac {\sqrt {a^2 x^2+1} \text {arcsinh}(a x)^3}{a^2}+\frac {6 \sqrt {a^2 x^2+1} \text {arcsinh}(a x)}{a^2}-\frac {3 x \text {arcsinh}(a x)^2}{a}-\frac {6 x}{a} \]
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Rule 8
Rule 5772
Rule 5798
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^3}{a^2}-\frac {3 \int \text {arcsinh}(a x)^2 \, dx}{a} \\ & = -\frac {3 x \text {arcsinh}(a x)^2}{a}+\frac {\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^3}{a^2}+6 \int \frac {x \text {arcsinh}(a x)}{\sqrt {1+a^2 x^2}} \, dx \\ & = \frac {6 \sqrt {1+a^2 x^2} \text {arcsinh}(a x)}{a^2}-\frac {3 x \text {arcsinh}(a x)^2}{a}+\frac {\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^3}{a^2}-\frac {6 \int 1 \, dx}{a} \\ & = -\frac {6 x}{a}+\frac {6 \sqrt {1+a^2 x^2} \text {arcsinh}(a x)}{a^2}-\frac {3 x \text {arcsinh}(a x)^2}{a}+\frac {\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^3}{a^2} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 58, normalized size of antiderivative = 0.91 \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=\frac {-6 a x+6 \sqrt {1+a^2 x^2} \text {arcsinh}(a x)-3 a x \text {arcsinh}(a x)^2+\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^3}{a^2} \]
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Time = 0.29 (sec) , antiderivative size = 90, normalized size of antiderivative = 1.41
method | result | size |
default | \(\frac {\operatorname {arcsinh}\left (a x \right )^{3} a^{2} x^{2}+\operatorname {arcsinh}\left (a x \right )^{3}-3 \operatorname {arcsinh}\left (a x \right )^{2} \sqrt {a^{2} x^{2}+1}\, a x +6 a^{2} x^{2} \operatorname {arcsinh}\left (a x \right )+6 \,\operatorname {arcsinh}\left (a x \right )-6 a x \sqrt {a^{2} x^{2}+1}}{a^{2} \sqrt {a^{2} x^{2}+1}}\) | \(90\) |
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Time = 0.25 (sec) , antiderivative size = 92, normalized size of antiderivative = 1.44 \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=-\frac {3 \, a x \log \left (a x + \sqrt {a^{2} x^{2} + 1}\right )^{2} - \sqrt {a^{2} x^{2} + 1} \log \left (a x + \sqrt {a^{2} x^{2} + 1}\right )^{3} + 6 \, a x - 6 \, \sqrt {a^{2} x^{2} + 1} \log \left (a x + \sqrt {a^{2} x^{2} + 1}\right )}{a^{2}} \]
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Time = 0.34 (sec) , antiderivative size = 61, normalized size of antiderivative = 0.95 \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=\begin {cases} - \frac {3 x \operatorname {asinh}^{2}{\left (a x \right )}}{a} - \frac {6 x}{a} + \frac {\sqrt {a^{2} x^{2} + 1} \operatorname {asinh}^{3}{\left (a x \right )}}{a^{2}} + \frac {6 \sqrt {a^{2} x^{2} + 1} \operatorname {asinh}{\left (a x \right )}}{a^{2}} & \text {for}\: a \neq 0 \\0 & \text {otherwise} \end {cases} \]
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Time = 0.20 (sec) , antiderivative size = 61, normalized size of antiderivative = 0.95 \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=-\frac {3 \, x \operatorname {arsinh}\left (a x\right )^{2}}{a} + \frac {\sqrt {a^{2} x^{2} + 1} \operatorname {arsinh}\left (a x\right )^{3}}{a^{2}} - \frac {6 \, {\left (x - \frac {\sqrt {a^{2} x^{2} + 1} \operatorname {arsinh}\left (a x\right )}{a}\right )}}{a} \]
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Time = 0.33 (sec) , antiderivative size = 101, normalized size of antiderivative = 1.58 \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=\frac {\sqrt {a^{2} x^{2} + 1} \log \left (a x + \sqrt {a^{2} x^{2} + 1}\right )^{3}}{a^{2}} - \frac {3 \, {\left (x \log \left (a x + \sqrt {a^{2} x^{2} + 1}\right )^{2} + 2 \, a {\left (\frac {x}{a} - \frac {\sqrt {a^{2} x^{2} + 1} \log \left (a x + \sqrt {a^{2} x^{2} + 1}\right )}{a^{2}}\right )}\right )}}{a} \]
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Timed out. \[ \int \frac {x \text {arcsinh}(a x)^3}{\sqrt {1+a^2 x^2}} \, dx=\int \frac {x\,{\mathrm {asinh}\left (a\,x\right )}^3}{\sqrt {a^2\,x^2+1}} \,d x \]
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