Integrand size = 12, antiderivative size = 223 \[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=-\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {\sqrt {\pi } \text {erf}\left (\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}-\frac {3 \sqrt {3 \pi } \text {erf}\left (\sqrt {3} \sqrt {\text {arcsinh}(a x)}\right )}{8 a^5}+\frac {5 \sqrt {5 \pi } \text {erf}\left (\sqrt {5} \sqrt {\text {arcsinh}(a x)}\right )}{24 a^5}+\frac {\sqrt {\pi } \text {erfi}\left (\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}-\frac {3 \sqrt {3 \pi } \text {erfi}\left (\sqrt {3} \sqrt {\text {arcsinh}(a x)}\right )}{8 a^5}+\frac {5 \sqrt {5 \pi } \text {erfi}\left (\sqrt {5} \sqrt {\text {arcsinh}(a x)}\right )}{24 a^5} \]
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Time = 0.39 (sec) , antiderivative size = 223, normalized size of antiderivative = 1.00, number of steps used = 34, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.667, Rules used = {5779, 5818, 5780, 5556, 3388, 2211, 2235, 2236} \[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=\frac {\sqrt {\pi } \text {erf}\left (\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}-\frac {3 \sqrt {3 \pi } \text {erf}\left (\sqrt {3} \sqrt {\text {arcsinh}(a x)}\right )}{8 a^5}+\frac {5 \sqrt {5 \pi } \text {erf}\left (\sqrt {5} \sqrt {\text {arcsinh}(a x)}\right )}{24 a^5}+\frac {\sqrt {\pi } \text {erfi}\left (\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}-\frac {3 \sqrt {3 \pi } \text {erfi}\left (\sqrt {3} \sqrt {\text {arcsinh}(a x)}\right )}{8 a^5}+\frac {5 \sqrt {5 \pi } \text {erfi}\left (\sqrt {5} \sqrt {\text {arcsinh}(a x)}\right )}{24 a^5}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {2 x^4 \sqrt {a^2 x^2+1}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}} \]
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Rule 2211
Rule 2235
Rule 2236
Rule 3388
Rule 5556
Rule 5779
Rule 5780
Rule 5818
Rubi steps \begin{align*} \text {integral}& = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}+\frac {8 \int \frac {x^3}{\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^{3/2}} \, dx}{3 a}+\frac {1}{3} (10 a) \int \frac {x^5}{\sqrt {1+a^2 x^2} \text {arcsinh}(a x)^{3/2}} \, dx \\ & = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {100}{3} \int \frac {x^4}{\sqrt {\text {arcsinh}(a x)}} \, dx+\frac {16 \int \frac {x^2}{\sqrt {\text {arcsinh}(a x)}} \, dx}{a^2} \\ & = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {16 \text {Subst}\left (\int \frac {\cosh (x) \sinh ^2(x)}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{a^5}+\frac {100 \text {Subst}\left (\int \frac {\cosh (x) \sinh ^4(x)}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{3 a^5} \\ & = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {16 \text {Subst}\left (\int \left (-\frac {\cosh (x)}{4 \sqrt {x}}+\frac {\cosh (3 x)}{4 \sqrt {x}}\right ) \, dx,x,\text {arcsinh}(a x)\right )}{a^5}+\frac {100 \text {Subst}\left (\int \left (\frac {\cosh (x)}{8 \sqrt {x}}-\frac {3 \cosh (3 x)}{16 \sqrt {x}}+\frac {\cosh (5 x)}{16 \sqrt {x}}\right ) \, dx,x,\text {arcsinh}(a x)\right )}{3 a^5} \\ & = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {25 \text {Subst}\left (\int \frac {\cosh (5 x)}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{12 a^5}-\frac {4 \text {Subst}\left (\int \frac {\cosh (x)}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{a^5}+\frac {4 \text {Subst}\left (\int \frac {\cosh (3 x)}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{a^5}+\frac {25 \text {Subst}\left (\int \frac {\cosh (x)}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{6 a^5}-\frac {25 \text {Subst}\left (\int \frac {\cosh (3 x)}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{4 a^5} \\ & = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {25 \text {Subst}\left (\int \frac {e^{-5 x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{24 a^5}+\frac {25 \text {Subst}\left (\int \frac {e^{5 x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{24 a^5}+\frac {2 \text {Subst}\left (\int \frac {e^{-3 x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{a^5}-\frac {2 \text {Subst}\left (\int \frac {e^{-x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{a^5}-\frac {2 \text {Subst}\left (\int \frac {e^x}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{a^5}+\frac {2 \text {Subst}\left (\int \frac {e^{3 x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{a^5}+\frac {25 \text {Subst}\left (\int \frac {e^{-x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{12 a^5}+\frac {25 \text {Subst}\left (\int \frac {e^x}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{12 a^5}-\frac {25 \text {Subst}\left (\int \frac {e^{-3 x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{8 a^5}-\frac {25 \text {Subst}\left (\int \frac {e^{3 x}}{\sqrt {x}} \, dx,x,\text {arcsinh}(a x)\right )}{8 a^5} \\ & = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {25 \text {Subst}\left (\int e^{-5 x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}+\frac {25 \text {Subst}\left (\int e^{5 x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}+\frac {4 \text {Subst}\left (\int e^{-3 x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{a^5}-\frac {4 \text {Subst}\left (\int e^{-x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{a^5}-\frac {4 \text {Subst}\left (\int e^{x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{a^5}+\frac {4 \text {Subst}\left (\int e^{3 x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{a^5}+\frac {25 \text {Subst}\left (\int e^{-x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{6 a^5}+\frac {25 \text {Subst}\left (\int e^{x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{6 a^5}-\frac {25 \text {Subst}\left (\int e^{-3 x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{4 a^5}-\frac {25 \text {Subst}\left (\int e^{3 x^2} \, dx,x,\sqrt {\text {arcsinh}(a x)}\right )}{4 a^5} \\ & = -\frac {2 x^4 \sqrt {1+a^2 x^2}}{3 a \text {arcsinh}(a x)^{3/2}}-\frac {16 x^3}{3 a^2 \sqrt {\text {arcsinh}(a x)}}-\frac {20 x^5}{3 \sqrt {\text {arcsinh}(a x)}}+\frac {\sqrt {\pi } \text {erf}\left (\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}-\frac {3 \sqrt {3 \pi } \text {erf}\left (\sqrt {3} \sqrt {\text {arcsinh}(a x)}\right )}{8 a^5}+\frac {5 \sqrt {5 \pi } \text {erf}\left (\sqrt {5} \sqrt {\text {arcsinh}(a x)}\right )}{24 a^5}+\frac {\sqrt {\pi } \text {erfi}\left (\sqrt {\text {arcsinh}(a x)}\right )}{12 a^5}-\frac {3 \sqrt {3 \pi } \text {erfi}\left (\sqrt {3} \sqrt {\text {arcsinh}(a x)}\right )}{8 a^5}+\frac {5 \sqrt {5 \pi } \text {erfi}\left (\sqrt {5} \sqrt {\text {arcsinh}(a x)}\right )}{24 a^5} \\ \end{align*}
Time = 0.23 (sec) , antiderivative size = 339, normalized size of antiderivative = 1.52 \[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=\frac {-\frac {e^{5 \text {arcsinh}(a x)} (1+10 \text {arcsinh}(a x))+10 \sqrt {5} (-\text {arcsinh}(a x))^{3/2} \Gamma \left (\frac {1}{2},-5 \text {arcsinh}(a x)\right )}{48 \text {arcsinh}(a x)^{3/2}}+\frac {e^{3 \text {arcsinh}(a x)} (1+6 \text {arcsinh}(a x))+6 \sqrt {3} (-\text {arcsinh}(a x))^{3/2} \Gamma \left (\frac {1}{2},-3 \text {arcsinh}(a x)\right )}{16 \text {arcsinh}(a x)^{3/2}}-\frac {e^{\text {arcsinh}(a x)} (1+2 \text {arcsinh}(a x))+2 (-\text {arcsinh}(a x))^{3/2} \Gamma \left (\frac {1}{2},-\text {arcsinh}(a x)\right )}{24 \text {arcsinh}(a x)^{3/2}}-\frac {e^{-\text {arcsinh}(a x)} \left (1-2 \text {arcsinh}(a x)+2 e^{\text {arcsinh}(a x)} \text {arcsinh}(a x)^{3/2} \Gamma \left (\frac {1}{2},\text {arcsinh}(a x)\right )\right )}{24 \text {arcsinh}(a x)^{3/2}}+\frac {1}{16} \left (\frac {e^{-3 \text {arcsinh}(a x)}}{\text {arcsinh}(a x)^{3/2}}-\frac {6 e^{-3 \text {arcsinh}(a x)}}{\sqrt {\text {arcsinh}(a x)}}+6 \sqrt {3} \Gamma \left (\frac {1}{2},3 \text {arcsinh}(a x)\right )\right )-\frac {e^{-5 \text {arcsinh}(a x)} \left (1-10 \text {arcsinh}(a x)+10 \sqrt {5} e^{5 \text {arcsinh}(a x)} \text {arcsinh}(a x)^{3/2} \Gamma \left (\frac {1}{2},5 \text {arcsinh}(a x)\right )\right )}{48 \text {arcsinh}(a x)^{3/2}}}{a^5} \]
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\[\int \frac {x^{4}}{\operatorname {arcsinh}\left (a x \right )^{\frac {5}{2}}}d x\]
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Exception generated. \[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=\text {Exception raised: TypeError} \]
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\[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=\int \frac {x^{4}}{\operatorname {asinh}^{\frac {5}{2}}{\left (a x \right )}}\, dx \]
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\[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=\int { \frac {x^{4}}{\operatorname {arsinh}\left (a x\right )^{\frac {5}{2}}} \,d x } \]
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\[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=\int { \frac {x^{4}}{\operatorname {arsinh}\left (a x\right )^{\frac {5}{2}}} \,d x } \]
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Timed out. \[ \int \frac {x^4}{\text {arcsinh}(a x)^{5/2}} \, dx=\int \frac {x^4}{{\mathrm {asinh}\left (a\,x\right )}^{5/2}} \,d x \]
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