Optimal. Leaf size=60 \[ \frac{2 (1-a x)}{a \sqrt{c-a^2 c x^2}}+\frac{\tan ^{-1}\left (\frac{a \sqrt{c} x}{\sqrt{c-a^2 c x^2}}\right )}{a \sqrt{c}} \]
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Rubi [A] time = 0.103932, antiderivative size = 60, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.208, Rules used = {6167, 6142, 653, 217, 203} \[ \frac{2 (1-a x)}{a \sqrt{c-a^2 c x^2}}+\frac{\tan ^{-1}\left (\frac{a \sqrt{c} x}{\sqrt{c-a^2 c x^2}}\right )}{a \sqrt{c}} \]
Antiderivative was successfully verified.
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Rule 6167
Rule 6142
Rule 653
Rule 217
Rule 203
Rubi steps
\begin{align*} \int \frac{e^{-2 \coth ^{-1}(a x)}}{\sqrt{c-a^2 c x^2}} \, dx &=-\int \frac{e^{-2 \tanh ^{-1}(a x)}}{\sqrt{c-a^2 c x^2}} \, dx\\ &=-\left (c \int \frac{(1-a x)^2}{\left (c-a^2 c x^2\right )^{3/2}} \, dx\right )\\ &=\frac{2 (1-a x)}{a \sqrt{c-a^2 c x^2}}+\int \frac{1}{\sqrt{c-a^2 c x^2}} \, dx\\ &=\frac{2 (1-a x)}{a \sqrt{c-a^2 c x^2}}+\operatorname{Subst}\left (\int \frac{1}{1+a^2 c x^2} \, dx,x,\frac{x}{\sqrt{c-a^2 c x^2}}\right )\\ &=\frac{2 (1-a x)}{a \sqrt{c-a^2 c x^2}}+\frac{\tan ^{-1}\left (\frac{a \sqrt{c} x}{\sqrt{c-a^2 c x^2}}\right )}{a \sqrt{c}}\\ \end{align*}
Mathematica [A] time = 0.0605168, size = 100, normalized size = 1.67 \[ -\frac{2 \sqrt{1-a^2 x^2} \left (\sqrt{a x+1} (a x-1)+\sqrt{1-a x} (a x+1) \sin ^{-1}\left (\frac{\sqrt{1-a x}}{\sqrt{2}}\right )\right )}{a \sqrt{1-a x} (a x+1) \sqrt{c-a^2 c x^2}} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.05, size = 73, normalized size = 1.2 \begin{align*}{\arctan \left ({x\sqrt{{a}^{2}c}{\frac{1}{\sqrt{-{a}^{2}c{x}^{2}+c}}}} \right ){\frac{1}{\sqrt{{a}^{2}c}}}}+2\,{\frac{\sqrt{-{a}^{2}c \left ( x+{a}^{-1} \right ) ^{2}+2\, \left ( x+{a}^{-1} \right ) ac}}{{a}^{2}c \left ( x+{a}^{-1} \right ) }} \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 = 1.66441, size = 339, normalized size = 5.65 \begin{align*} \left [-\frac{{\left (a x + 1\right )} \sqrt{-c} \log \left (2 \, a^{2} c x^{2} - 2 \, \sqrt{-a^{2} c x^{2} + c} a \sqrt{-c} x - c\right ) - 4 \, \sqrt{-a^{2} c x^{2} + c}}{2 \,{\left (a^{2} c x + a c\right )}}, -\frac{{\left (a x + 1\right )} \sqrt{c} \arctan \left (\frac{\sqrt{-a^{2} c x^{2} + c} a \sqrt{c} x}{a^{2} c x^{2} - c}\right ) - 2 \, \sqrt{-a^{2} c x^{2} + c}}{a^{2} c x + a c}\right ] \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{a x - 1}{\sqrt{- c \left (a x - 1\right ) \left (a x + 1\right )} \left (a x + 1\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*} \mathit{undef} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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