Optimal. Leaf size=111 \[ \frac{c^3 \sqrt{1-a^2 x^2}}{a}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}+\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}+\frac{13 c^3 \tanh ^{-1}\left (\sqrt{1-a^2 x^2}\right )}{2 a}+\frac{4 c^3 \sin ^{-1}(a x)}{a} \]
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Rubi [A] time = 0.31196, antiderivative size = 111, normalized size of antiderivative = 1., number of steps used = 10, number of rules used = 9, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.409, Rules used = {6131, 6128, 1807, 1809, 844, 216, 266, 63, 208} \[ \frac{c^3 \sqrt{1-a^2 x^2}}{a}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}+\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}+\frac{13 c^3 \tanh ^{-1}\left (\sqrt{1-a^2 x^2}\right )}{2 a}+\frac{4 c^3 \sin ^{-1}(a x)}{a} \]
Antiderivative was successfully verified.
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Rule 6131
Rule 6128
Rule 1807
Rule 1809
Rule 844
Rule 216
Rule 266
Rule 63
Rule 208
Rubi steps
\begin{align*} \int e^{-\tanh ^{-1}(a x)} \left (c-\frac{c}{a x}\right )^3 \, dx &=-\frac{c^3 \int \frac{e^{-\tanh ^{-1}(a x)} (1-a x)^3}{x^3} \, dx}{a^3}\\ &=-\frac{c^3 \int \frac{(1-a x)^4}{x^3 \sqrt{1-a^2 x^2}} \, dx}{a^3}\\ &=\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}+\frac{c^3 \int \frac{8 a-13 a^2 x+8 a^3 x^2-2 a^4 x^3}{x^2 \sqrt{1-a^2 x^2}} \, dx}{2 a^3}\\ &=\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}-\frac{c^3 \int \frac{13 a^2-8 a^3 x+2 a^4 x^2}{x \sqrt{1-a^2 x^2}} \, dx}{2 a^3}\\ &=\frac{c^3 \sqrt{1-a^2 x^2}}{a}+\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}+\frac{c^3 \int \frac{-13 a^4+8 a^5 x}{x \sqrt{1-a^2 x^2}} \, dx}{2 a^5}\\ &=\frac{c^3 \sqrt{1-a^2 x^2}}{a}+\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}+\left (4 c^3\right ) \int \frac{1}{\sqrt{1-a^2 x^2}} \, dx-\frac{\left (13 c^3\right ) \int \frac{1}{x \sqrt{1-a^2 x^2}} \, dx}{2 a}\\ &=\frac{c^3 \sqrt{1-a^2 x^2}}{a}+\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}+\frac{4 c^3 \sin ^{-1}(a x)}{a}-\frac{\left (13 c^3\right ) \operatorname{Subst}\left (\int \frac{1}{x \sqrt{1-a^2 x}} \, dx,x,x^2\right )}{4 a}\\ &=\frac{c^3 \sqrt{1-a^2 x^2}}{a}+\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}+\frac{4 c^3 \sin ^{-1}(a x)}{a}+\frac{\left (13 c^3\right ) \operatorname{Subst}\left (\int \frac{1}{\frac{1}{a^2}-\frac{x^2}{a^2}} \, dx,x,\sqrt{1-a^2 x^2}\right )}{2 a^3}\\ &=\frac{c^3 \sqrt{1-a^2 x^2}}{a}+\frac{c^3 \sqrt{1-a^2 x^2}}{2 a^3 x^2}-\frac{4 c^3 \sqrt{1-a^2 x^2}}{a^2 x}+\frac{4 c^3 \sin ^{-1}(a x)}{a}+\frac{13 c^3 \tanh ^{-1}\left (\sqrt{1-a^2 x^2}\right )}{2 a}\\ \end{align*}
Mathematica [A] time = 0.181021, size = 77, normalized size = 0.69 \[ \frac{c^3 \left (\frac{\sqrt{1-a^2 x^2} \left (2 a^2 x^2-8 a x+1\right )}{a^2 x^2}+13 \log \left (\sqrt{1-a^2 x^2}+1\right )-13 \log (a x)+8 \sin ^{-1}(a x)\right )}{2 a} \]
Warning: Unable to verify antiderivative.
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Maple [B] time = 0.053, size = 209, normalized size = 1.9 \begin{align*} -4\,{\frac{{c}^{3} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{3/2}}{{a}^{2}x}}-4\,{c}^{3}x\sqrt{-{a}^{2}{x}^{2}+1}-4\,{\frac{{c}^{3}}{\sqrt{{a}^{2}}}\arctan \left ({\frac{\sqrt{{a}^{2}}x}{\sqrt{-{a}^{2}{x}^{2}+1}}} \right ) }+{\frac{13\,{c}^{3}}{2\,a}{\it Artanh} \left ({\frac{1}{\sqrt{-{a}^{2}{x}^{2}+1}}} \right ) }-{\frac{13\,{c}^{3}}{2\,a}\sqrt{-{a}^{2}{x}^{2}+1}}+8\,{\frac{{c}^{3}\sqrt{-{a}^{2} \left ( x+{a}^{-1} \right ) ^{2}+2\,a \left ( x+{a}^{-1} \right ) }}{a}}+8\,{\frac{{c}^{3}}{\sqrt{{a}^{2}}}\arctan \left ({\frac{\sqrt{{a}^{2}}x}{\sqrt{-{a}^{2} \left ( x+{a}^{-1} \right ) ^{2}+2\,a \left ( x+{a}^{-1} \right ) }}} \right ) }+{\frac{{c}^{3}}{2\,{x}^{2}{a}^{3}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.12384, size = 259, normalized size = 2.33 \begin{align*} -\frac{16 \, a^{2} c^{3} x^{2} \arctan \left (\frac{\sqrt{-a^{2} x^{2} + 1} - 1}{a x}\right ) + 13 \, a^{2} c^{3} x^{2} \log \left (\frac{\sqrt{-a^{2} x^{2} + 1} - 1}{x}\right ) - 2 \, a^{2} c^{3} x^{2} -{\left (2 \, a^{2} c^{3} x^{2} - 8 \, a c^{3} x + c^{3}\right )} \sqrt{-a^{2} x^{2} + 1}}{2 \, a^{3} x^{2}} \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*} \frac{c^{3} \left (\int - \frac{\sqrt{- a^{2} x^{2} + 1}}{a x^{4} + x^{3}}\, dx + \int \frac{3 a x \sqrt{- a^{2} x^{2} + 1}}{a x^{4} + x^{3}}\, dx + \int - \frac{3 a^{2} x^{2} \sqrt{- a^{2} x^{2} + 1}}{a x^{4} + x^{3}}\, dx + \int \frac{a^{3} x^{3} \sqrt{- a^{2} x^{2} + 1}}{a x^{4} + x^{3}}\, dx\right )}{a^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.20003, size = 278, normalized size = 2.5 \begin{align*} -\frac{{\left (c^{3} - \frac{16 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )} c^{3}}{a^{2} x}\right )} a^{4} x^{2}}{8 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{2}{\left | a \right |}} + \frac{4 \, c^{3} \arcsin \left (a x\right ) \mathrm{sgn}\left (a\right )}{{\left | a \right |}} + \frac{13 \, c^{3} \log \left (\frac{{\left | -2 \, \sqrt{-a^{2} x^{2} + 1}{\left | a \right |} - 2 \, a \right |}}{2 \, a^{2}{\left | x \right |}}\right )}{2 \,{\left | a \right |}} + \frac{\sqrt{-a^{2} x^{2} + 1} c^{3}}{a} - \frac{\frac{16 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )} c^{3}{\left | a \right |}}{a^{2} x} - \frac{{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{2} c^{3}{\left | a \right |}}{a^{4} x^{2}}}{8 \, a^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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