Optimal. Leaf size=73 \[ -\frac{\left (1-a^2 x^2\right )^{p+\frac{1}{2}} \text{Hypergeometric2F1}\left (1,p+\frac{1}{2},p+\frac{3}{2},1-a^2 x^2\right )}{2 p+1}-a x \text{Hypergeometric2F1}\left (\frac{1}{2},\frac{1}{2}-p,\frac{3}{2},a^2 x^2\right ) \]
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Rubi [A] time = 0.0949322, antiderivative size = 73, 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 = {6149, 764, 266, 65, 245} \[ -\frac{\left (1-a^2 x^2\right )^{p+\frac{1}{2}} \, _2F_1\left (1,p+\frac{1}{2};p+\frac{3}{2};1-a^2 x^2\right )}{2 p+1}-a x \, _2F_1\left (\frac{1}{2},\frac{1}{2}-p;\frac{3}{2};a^2 x^2\right ) \]
Antiderivative was successfully verified.
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Rule 6149
Rule 764
Rule 266
Rule 65
Rule 245
Rubi steps
\begin{align*} \int \frac{e^{-\tanh ^{-1}(a x)} \left (1-a^2 x^2\right )^p}{x} \, dx &=\int \frac{(1-a x) \left (1-a^2 x^2\right )^{-\frac{1}{2}+p}}{x} \, dx\\ &=-\left (a \int \left (1-a^2 x^2\right )^{-\frac{1}{2}+p} \, dx\right )+\int \frac{\left (1-a^2 x^2\right )^{-\frac{1}{2}+p}}{x} \, dx\\ &=-a x \, _2F_1\left (\frac{1}{2},\frac{1}{2}-p;\frac{3}{2};a^2 x^2\right )+\frac{1}{2} \operatorname{Subst}\left (\int \frac{\left (1-a^2 x\right )^{-\frac{1}{2}+p}}{x} \, dx,x,x^2\right )\\ &=-a x \, _2F_1\left (\frac{1}{2},\frac{1}{2}-p;\frac{3}{2};a^2 x^2\right )-\frac{\left (1-a^2 x^2\right )^{\frac{1}{2}+p} \, _2F_1\left (1,\frac{1}{2}+p;\frac{3}{2}+p;1-a^2 x^2\right )}{1+2 p}\\ \end{align*}
Mathematica [A] time = 0.0273997, size = 75, normalized size = 1.03 \[ -\frac{\left (1-a^2 x^2\right )^{p+\frac{1}{2}} \text{Hypergeometric2F1}\left (1,p+\frac{1}{2},p+\frac{3}{2},1-a^2 x^2\right )}{2 \left (p+\frac{1}{2}\right )}-a x \text{Hypergeometric2F1}\left (\frac{1}{2},\frac{1}{2}-p,\frac{3}{2},a^2 x^2\right ) \]
Antiderivative was successfully verified.
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Maple [F] time = 0.431, size = 0, normalized size = 0. \begin{align*} \int{\frac{ \left ( -{a}^{2}{x}^{2}+1 \right ) ^{p}}{ \left ( ax+1 \right ) x}\sqrt{-{a}^{2}{x}^{2}+1}}\, dx \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{{\left (-a^{2} x^{2} + 1\right )}^{p + \frac{1}{2}}}{{\left (a x + 1\right )} x}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{\sqrt{-a^{2} x^{2} + 1}{\left (-a^{2} x^{2} + 1\right )}^{p}}{a x^{2} + x}, x\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 )} \left (- \left (a x - 1\right ) \left (a x + 1\right )\right )^{p}}{x \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^{2} x^{2} + 1\right )}^{p}}{{\left (a x + 1\right )} x}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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