Integrand size = 6, antiderivative size = 49 \[ \int \text {arcsinh}(a x)^n \, dx=\frac {(-\text {arcsinh}(a x))^{-n} \text {arcsinh}(a x)^n \Gamma (1+n,-\text {arcsinh}(a x))}{2 a}-\frac {\Gamma (1+n,\text {arcsinh}(a x))}{2 a} \]
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Time = 0.04 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {5774, 3388, 2212} \[ \int \text {arcsinh}(a x)^n \, dx=\frac {(-\text {arcsinh}(a x))^{-n} \text {arcsinh}(a x)^n \Gamma (n+1,-\text {arcsinh}(a x))}{2 a}-\frac {\Gamma (n+1,\text {arcsinh}(a x))}{2 a} \]
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Rule 2212
Rule 3388
Rule 5774
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int x^n \cosh (x) \, dx,x,\text {arcsinh}(a x)\right )}{a} \\ & = \frac {\text {Subst}\left (\int e^{-x} x^n \, dx,x,\text {arcsinh}(a x)\right )}{2 a}+\frac {\text {Subst}\left (\int e^x x^n \, dx,x,\text {arcsinh}(a x)\right )}{2 a} \\ & = \frac {(-\text {arcsinh}(a x))^{-n} \text {arcsinh}(a x)^n \Gamma (1+n,-\text {arcsinh}(a x))}{2 a}-\frac {\Gamma (1+n,\text {arcsinh}(a x))}{2 a} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.92 \[ \int \text {arcsinh}(a x)^n \, dx=\frac {(-\text {arcsinh}(a x))^{-n} \text {arcsinh}(a x)^n \Gamma (1+n,-\text {arcsinh}(a x))-\Gamma (1+n,\text {arcsinh}(a x))}{2 a} \]
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Result contains higher order function than in optimal. Order 5 vs. order 4.
Time = 0.07 (sec) , antiderivative size = 40, normalized size of antiderivative = 0.82
method | result | size |
default | \(\frac {\operatorname {arcsinh}\left (a x \right )^{1+n} \operatorname {hypergeom}\left (\left [\frac {1}{2}+\frac {n}{2}\right ], \left [\frac {1}{2}, \frac {3}{2}+\frac {n}{2}\right ], \frac {\operatorname {arcsinh}\left (a x \right )^{2}}{4}\right )}{a \left (1+n \right )}\) | \(40\) |
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\[ \int \text {arcsinh}(a x)^n \, dx=\int { \operatorname {arsinh}\left (a x\right )^{n} \,d x } \]
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\[ \int \text {arcsinh}(a x)^n \, dx=\int \operatorname {asinh}^{n}{\left (a x \right )}\, dx \]
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\[ \int \text {arcsinh}(a x)^n \, dx=\int { \operatorname {arsinh}\left (a x\right )^{n} \,d x } \]
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\[ \int \text {arcsinh}(a x)^n \, dx=\int { \operatorname {arsinh}\left (a x\right )^{n} \,d x } \]
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Timed out. \[ \int \text {arcsinh}(a x)^n \, dx=\int {\mathrm {asinh}\left (a\,x\right )}^n \,d x \]
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