Optimal. Leaf size=94 \[ -\frac{2 \sqrt{1-a^2 x^2}}{15 a c^2 (a x+1)}-\frac{2 \sqrt{1-a^2 x^2}}{15 a c^2 (a x+1)^2}-\frac{\sqrt{1-a^2 x^2}}{5 a c^2 (a x+1)^3} \]
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Rubi [A] time = 0.0797878, antiderivative size = 94, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 4, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.182, Rules used = {6139, 655, 659, 651} \[ -\frac{2 \sqrt{1-a^2 x^2}}{15 a c^2 (a x+1)}-\frac{2 \sqrt{1-a^2 x^2}}{15 a c^2 (a x+1)^2}-\frac{\sqrt{1-a^2 x^2}}{5 a c^2 (a x+1)^3} \]
Antiderivative was successfully verified.
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Rule 6139
Rule 655
Rule 659
Rule 651
Rubi steps
\begin{align*} \int \frac{e^{-3 \tanh ^{-1}(a x)}}{\left (c-a^2 c x^2\right )^2} \, dx &=\frac{\int \frac{(1-a x)^3}{\left (1-a^2 x^2\right )^{7/2}} \, dx}{c^2}\\ &=\frac{\int \frac{1}{(1+a x)^3 \sqrt{1-a^2 x^2}} \, dx}{c^2}\\ &=-\frac{\sqrt{1-a^2 x^2}}{5 a c^2 (1+a x)^3}+\frac{2 \int \frac{1}{(1+a x)^2 \sqrt{1-a^2 x^2}} \, dx}{5 c^2}\\ &=-\frac{\sqrt{1-a^2 x^2}}{5 a c^2 (1+a x)^3}-\frac{2 \sqrt{1-a^2 x^2}}{15 a c^2 (1+a x)^2}+\frac{2 \int \frac{1}{(1+a x) \sqrt{1-a^2 x^2}} \, dx}{15 c^2}\\ &=-\frac{\sqrt{1-a^2 x^2}}{5 a c^2 (1+a x)^3}-\frac{2 \sqrt{1-a^2 x^2}}{15 a c^2 (1+a x)^2}-\frac{2 \sqrt{1-a^2 x^2}}{15 a c^2 (1+a x)}\\ \end{align*}
Mathematica [A] time = 0.0185846, size = 43, normalized size = 0.46 \[ -\frac{\sqrt{1-a x} \left (2 a^2 x^2+6 a x+7\right )}{15 a c^2 (a x+1)^{5/2}} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.029, size = 42, normalized size = 0.5 \begin{align*} -{\frac{2\,{a}^{2}{x}^{2}+6\,ax+7}{15\, \left ( ax+1 \right ) ^{3}{c}^{2}a}\sqrt{-{a}^{2}{x}^{2}+1}} \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 )}^{\frac{3}{2}}}{{\left (a^{2} c x^{2} - c\right )}^{2}{\left (a x + 1\right )}^{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 3.11633, size = 192, normalized size = 2.04 \begin{align*} -\frac{7 \, a^{3} x^{3} + 21 \, a^{2} x^{2} + 21 \, a x +{\left (2 \, a^{2} x^{2} + 6 \, a x + 7\right )} \sqrt{-a^{2} x^{2} + 1} + 7}{15 \,{\left (a^{4} c^{2} x^{3} + 3 \, a^{3} c^{2} x^{2} + 3 \, a^{2} c^{2} x + a c^{2}\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*} \frac{\int \frac{1}{a^{3} x^{3} \sqrt{- a^{2} x^{2} + 1} + 3 a^{2} x^{2} \sqrt{- a^{2} x^{2} + 1} + 3 a x \sqrt{- a^{2} x^{2} + 1} + \sqrt{- a^{2} x^{2} + 1}}\, dx}{c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.1756, size = 196, normalized size = 2.09 \begin{align*} \frac{2 \,{\left (\frac{20 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}}{a^{2} x} + \frac{40 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{2}}{a^{4} x^{2}} + \frac{30 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{3}}{a^{6} x^{3}} + \frac{15 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{4}}{a^{8} x^{4}} + 7\right )}}{15 \, c^{2}{\left (\frac{\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a}{a^{2} x} + 1\right )}^{5}{\left | a \right |}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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