Optimal. Leaf size=65 \[ \frac{a x \sqrt{c-a^2 c x^2}}{\sqrt{1-a^2 x^2}}+\frac{\log (x) \sqrt{c-a^2 c x^2}}{\sqrt{1-a^2 x^2}} \]
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Rubi [A] time = 0.175835, antiderivative size = 65, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 25, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.12, Rules used = {6153, 6150, 43} \[ \frac{a x \sqrt{c-a^2 c x^2}}{\sqrt{1-a^2 x^2}}+\frac{\log (x) \sqrt{c-a^2 c x^2}}{\sqrt{1-a^2 x^2}} \]
Antiderivative was successfully verified.
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Rule 6153
Rule 6150
Rule 43
Rubi steps
\begin{align*} \int \frac{e^{\tanh ^{-1}(a x)} \sqrt{c-a^2 c x^2}}{x} \, dx &=\frac{\sqrt{c-a^2 c x^2} \int \frac{e^{\tanh ^{-1}(a x)} \sqrt{1-a^2 x^2}}{x} \, dx}{\sqrt{1-a^2 x^2}}\\ &=\frac{\sqrt{c-a^2 c x^2} \int \frac{1+a x}{x} \, dx}{\sqrt{1-a^2 x^2}}\\ &=\frac{\sqrt{c-a^2 c x^2} \int \left (a+\frac{1}{x}\right ) \, dx}{\sqrt{1-a^2 x^2}}\\ &=\frac{a x \sqrt{c-a^2 c x^2}}{\sqrt{1-a^2 x^2}}+\frac{\sqrt{c-a^2 c x^2} \log (x)}{\sqrt{1-a^2 x^2}}\\ \end{align*}
Mathematica [A] time = 0.0185091, size = 36, normalized size = 0.55 \[ \frac{\sqrt{c-a^2 c x^2} (a x+\log (x))}{\sqrt{1-a^2 x^2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.093, size = 48, normalized size = 0.7 \begin{align*}{\frac{-ax-\ln \left ( x \right ) }{{a}^{2}{x}^{2}-1}\sqrt{-{a}^{2}{x}^{2}+1}\sqrt{-c \left ({a}^{2}{x}^{2}-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 [B] time = 2.4956, size = 555, normalized size = 8.54 \begin{align*} \left [\frac{{\left (a^{2} x^{2} - 1\right )} \sqrt{c} \log \left (\frac{a^{2} c x^{6} + a^{2} c x^{2} - c x^{4} - \sqrt{-a^{2} c x^{2} + c} \sqrt{-a^{2} x^{2} + 1}{\left (x^{4} - 1\right )} \sqrt{c} - c}{a^{2} x^{4} - x^{2}}\right ) - 2 \, \sqrt{-a^{2} c x^{2} + c} \sqrt{-a^{2} x^{2} + 1}{\left (a x - a\right )}}{2 \,{\left (a^{2} x^{2} - 1\right )}}, \frac{{\left (a^{2} x^{2} - 1\right )} \sqrt{-c} \arctan \left (\frac{\sqrt{-a^{2} c x^{2} + c} \sqrt{-a^{2} x^{2} + 1}{\left (x^{2} + 1\right )} \sqrt{-c}}{a^{2} c x^{4} -{\left (a^{2} + 1\right )} c x^{2} + c}\right ) - \sqrt{-a^{2} c x^{2} + c} \sqrt{-a^{2} x^{2} + 1}{\left (a x - a\right )}}{a^{2} x^{2} - 1}\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{\sqrt{- c \left (a x - 1\right ) \left (a x + 1\right )} \left (a x + 1\right )}{x \sqrt{- \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*} \int \frac{\sqrt{-a^{2} c x^{2} + c}{\left (a x + 1\right )}}{\sqrt{-a^{2} x^{2} + 1} x}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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