Optimal. Leaf size=88 \[ \frac{\sqrt{1-a x} \sqrt{a x+1}}{a \sqrt{c-\frac{c}{a x}}}-\frac{\sqrt{1-a x} \sinh ^{-1}\left (\sqrt{a} \sqrt{x}\right )}{a^{3/2} \sqrt{x} \sqrt{c-\frac{c}{a x}}} \]
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Rubi [A] time = 0.145846, antiderivative size = 88, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {6134, 6128, 848, 50, 54, 215} \[ \frac{\sqrt{1-a x} \sqrt{a x+1}}{a \sqrt{c-\frac{c}{a x}}}-\frac{\sqrt{1-a x} \sinh ^{-1}\left (\sqrt{a} \sqrt{x}\right )}{a^{3/2} \sqrt{x} \sqrt{c-\frac{c}{a x}}} \]
Antiderivative was successfully verified.
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Rule 6134
Rule 6128
Rule 848
Rule 50
Rule 54
Rule 215
Rubi steps
\begin{align*} \int \frac{e^{-\tanh ^{-1}(a x)}}{\sqrt{c-\frac{c}{a x}}} \, dx &=\frac{\sqrt{1-a x} \int \frac{e^{-\tanh ^{-1}(a x)} \sqrt{x}}{\sqrt{1-a x}} \, dx}{\sqrt{c-\frac{c}{a x}} \sqrt{x}}\\ &=\frac{\sqrt{1-a x} \int \frac{\sqrt{x} \sqrt{1-a x}}{\sqrt{1-a^2 x^2}} \, dx}{\sqrt{c-\frac{c}{a x}} \sqrt{x}}\\ &=\frac{\sqrt{1-a x} \int \frac{\sqrt{x}}{\sqrt{1+a x}} \, dx}{\sqrt{c-\frac{c}{a x}} \sqrt{x}}\\ &=\frac{\sqrt{1-a x} \sqrt{1+a x}}{a \sqrt{c-\frac{c}{a x}}}-\frac{\sqrt{1-a x} \int \frac{1}{\sqrt{x} \sqrt{1+a x}} \, dx}{2 a \sqrt{c-\frac{c}{a x}} \sqrt{x}}\\ &=\frac{\sqrt{1-a x} \sqrt{1+a x}}{a \sqrt{c-\frac{c}{a x}}}-\frac{\sqrt{1-a x} \operatorname{Subst}\left (\int \frac{1}{\sqrt{1+a x^2}} \, dx,x,\sqrt{x}\right )}{a \sqrt{c-\frac{c}{a x}} \sqrt{x}}\\ &=\frac{\sqrt{1-a x} \sqrt{1+a x}}{a \sqrt{c-\frac{c}{a x}}}-\frac{\sqrt{1-a x} \sinh ^{-1}\left (\sqrt{a} \sqrt{x}\right )}{a^{3/2} \sqrt{c-\frac{c}{a x}} \sqrt{x}}\\ \end{align*}
Mathematica [A] time = 0.0368407, size = 71, normalized size = 0.81 \[ \frac{\sqrt{1-a x} \left (\sqrt{a} \sqrt{x} \sqrt{a x+1}-\sinh ^{-1}\left (\sqrt{a} \sqrt{x}\right )\right )}{a^{3/2} \sqrt{x} \sqrt{c-\frac{c}{a x}}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.125, size = 92, normalized size = 1.1 \begin{align*}{\frac{x}{2\,c \left ( ax-1 \right ) }\sqrt{{\frac{c \left ( ax-1 \right ) }{ax}}}\sqrt{-{a}^{2}{x}^{2}+1} \left ( 2\,\sqrt{a}\sqrt{- \left ( ax+1 \right ) x}+\arctan \left ({\frac{2\,ax+1}{2}{\frac{1}{\sqrt{a}}}{\frac{1}{\sqrt{- \left ( ax+1 \right ) x}}}} \right ) \right ){\frac{1}{\sqrt{a}}}{\frac{1}{\sqrt{- \left ( ax+1 \right ) x}}}} \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{\sqrt{-a^{2} x^{2} + 1}}{{\left (a x + 1\right )} \sqrt{c - \frac{c}{a x}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.08492, size = 537, normalized size = 6.1 \begin{align*} \left [\frac{4 \, \sqrt{-a^{2} x^{2} + 1} a x \sqrt{\frac{a c x - c}{a x}} -{\left (a x - 1\right )} \sqrt{-c} \log \left (-\frac{8 \, a^{3} c x^{3} - 7 \, a c x - 4 \,{\left (2 \, a^{2} x^{2} + a x\right )} \sqrt{-a^{2} x^{2} + 1} \sqrt{-c} \sqrt{\frac{a c x - c}{a x}} - c}{a x - 1}\right )}{4 \,{\left (a^{2} c x - a c\right )}}, \frac{2 \, \sqrt{-a^{2} x^{2} + 1} a x \sqrt{\frac{a c x - c}{a x}} -{\left (a x - 1\right )} \sqrt{c} \arctan \left (\frac{2 \, \sqrt{-a^{2} x^{2} + 1} a \sqrt{c} x \sqrt{\frac{a c x - c}{a x}}}{2 \, a^{2} c x^{2} - a c x - c}\right )}{2 \,{\left (a^{2} c x - a c\right )}}\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{- \left (a x - 1\right ) \left (a x + 1\right )}}{\sqrt{- c \left (-1 + \frac{1}{a x}\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} x^{2} + 1}}{{\left (a x + 1\right )} \sqrt{c - \frac{c}{a x}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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