Optimal. Leaf size=84 \[ -\frac{2 \sqrt{a^2 x^2+1}}{3 a \sinh ^{-1}(a x)^{3/2}}+\frac{2 \sqrt{\pi } \text{Erf}\left (\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}+\frac{2 \sqrt{\pi } \text{Erfi}\left (\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}-\frac{4 x}{3 \sqrt{\sinh ^{-1}(a x)}} \]
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Rubi [A] time = 0.117399, antiderivative size = 84, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 7, integrand size = 8, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.875, Rules used = {5655, 5774, 5657, 3307, 2180, 2204, 2205} \[ -\frac{2 \sqrt{a^2 x^2+1}}{3 a \sinh ^{-1}(a x)^{3/2}}+\frac{2 \sqrt{\pi } \text{Erf}\left (\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}+\frac{2 \sqrt{\pi } \text{Erfi}\left (\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}-\frac{4 x}{3 \sqrt{\sinh ^{-1}(a x)}} \]
Antiderivative was successfully verified.
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Rule 5655
Rule 5774
Rule 5657
Rule 3307
Rule 2180
Rule 2204
Rule 2205
Rubi steps
\begin{align*} \int \frac{1}{\sinh ^{-1}(a x)^{5/2}} \, dx &=-\frac{2 \sqrt{1+a^2 x^2}}{3 a \sinh ^{-1}(a x)^{3/2}}+\frac{1}{3} (2 a) \int \frac{x}{\sqrt{1+a^2 x^2} \sinh ^{-1}(a x)^{3/2}} \, dx\\ &=-\frac{2 \sqrt{1+a^2 x^2}}{3 a \sinh ^{-1}(a x)^{3/2}}-\frac{4 x}{3 \sqrt{\sinh ^{-1}(a x)}}+\frac{4}{3} \int \frac{1}{\sqrt{\sinh ^{-1}(a x)}} \, dx\\ &=-\frac{2 \sqrt{1+a^2 x^2}}{3 a \sinh ^{-1}(a x)^{3/2}}-\frac{4 x}{3 \sqrt{\sinh ^{-1}(a x)}}+\frac{4 \operatorname{Subst}\left (\int \frac{\cosh (x)}{\sqrt{x}} \, dx,x,\sinh ^{-1}(a x)\right )}{3 a}\\ &=-\frac{2 \sqrt{1+a^2 x^2}}{3 a \sinh ^{-1}(a x)^{3/2}}-\frac{4 x}{3 \sqrt{\sinh ^{-1}(a x)}}+\frac{2 \operatorname{Subst}\left (\int \frac{e^{-x}}{\sqrt{x}} \, dx,x,\sinh ^{-1}(a x)\right )}{3 a}+\frac{2 \operatorname{Subst}\left (\int \frac{e^x}{\sqrt{x}} \, dx,x,\sinh ^{-1}(a x)\right )}{3 a}\\ &=-\frac{2 \sqrt{1+a^2 x^2}}{3 a \sinh ^{-1}(a x)^{3/2}}-\frac{4 x}{3 \sqrt{\sinh ^{-1}(a x)}}+\frac{4 \operatorname{Subst}\left (\int e^{-x^2} \, dx,x,\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}+\frac{4 \operatorname{Subst}\left (\int e^{x^2} \, dx,x,\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}\\ &=-\frac{2 \sqrt{1+a^2 x^2}}{3 a \sinh ^{-1}(a x)^{3/2}}-\frac{4 x}{3 \sqrt{\sinh ^{-1}(a x)}}+\frac{2 \sqrt{\pi } \text{erf}\left (\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}+\frac{2 \sqrt{\pi } \text{erfi}\left (\sqrt{\sinh ^{-1}(a x)}\right )}{3 a}\\ \end{align*}
Mathematica [A] time = 0.0983834, size = 105, normalized size = 1.25 \[ -\frac{e^{-\sinh ^{-1}(a x)} \left (2 e^{\sinh ^{-1}(a x)} \left (-\sinh ^{-1}(a x)\right )^{3/2} \text{Gamma}\left (\frac{1}{2},-\sinh ^{-1}(a x)\right )+2 e^{\sinh ^{-1}(a x)} \sinh ^{-1}(a x)^{3/2} \text{Gamma}\left (\frac{1}{2},\sinh ^{-1}(a x)\right )+e^{2 \sinh ^{-1}(a x)}+2 e^{2 \sinh ^{-1}(a x)} \sinh ^{-1}(a x)-2 \sinh ^{-1}(a x)+1\right )}{3 a \sinh ^{-1}(a x)^{3/2}} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.076, size = 81, normalized size = 1. \begin{align*}{\frac{2}{3\,\sqrt{\pi }a \left ({\it Arcsinh} \left ( ax \right ) \right ) ^{2}} \left ( -2\, \left ({\it Arcsinh} \left ( ax \right ) \right ) ^{3/2}\sqrt{\pi }xa+ \left ({\it Arcsinh} \left ( ax \right ) \right ) ^{2}\pi \,{\it Erf} \left ( \sqrt{{\it Arcsinh} \left ( ax \right ) } \right ) + \left ({\it Arcsinh} \left ( ax \right ) \right ) ^{2}\pi \,{\it erfi} \left ( \sqrt{{\it Arcsinh} \left ( ax \right ) } \right ) -\sqrt{{\it Arcsinh} \left ( ax \right ) }\sqrt{\pi }\sqrt{{a}^{2}{x}^{2}+1} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{\operatorname{arsinh}\left (a x\right )^{\frac{5}{2}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: UnboundLocalError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{\operatorname{asinh}^{\frac{5}{2}}{\left (a x \right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{\operatorname{arsinh}\left (a x\right )^{\frac{5}{2}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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