Optimal. Leaf size=54 \[ -\frac{(1-2 a x) e^{-\tan ^{-1}(a x)}}{5 a c^2 \left (a^2 x^2+1\right )}-\frac{2 e^{-\tan ^{-1}(a x)}}{5 a c^2} \]
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Rubi [A] time = 0.0539602, antiderivative size = 54, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.095, Rules used = {5070, 5071} \[ -\frac{(1-2 a x) e^{-\tan ^{-1}(a x)}}{5 a c^2 \left (a^2 x^2+1\right )}-\frac{2 e^{-\tan ^{-1}(a x)}}{5 a c^2} \]
Antiderivative was successfully verified.
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Rule 5070
Rule 5071
Rubi steps
\begin{align*} \int \frac{e^{-\tan ^{-1}(a x)}}{\left (c+a^2 c x^2\right )^2} \, dx &=-\frac{e^{-\tan ^{-1}(a x)} (1-2 a x)}{5 a c^2 \left (1+a^2 x^2\right )}+\frac{2 \int \frac{e^{-\tan ^{-1}(a x)}}{c+a^2 c x^2} \, dx}{5 c}\\ &=-\frac{2 e^{-\tan ^{-1}(a x)}}{5 a c^2}-\frac{e^{-\tan ^{-1}(a x)} (1-2 a x)}{5 a c^2 \left (1+a^2 x^2\right )}\\ \end{align*}
Mathematica [C] time = 0.0222546, size = 60, normalized size = 1.11 \[ -\frac{(1-i a x)^{-\frac{i}{2}} (1+i a x)^{\frac{i}{2}} \left (2 a^2 x^2-2 a x+3\right )}{5 c^2 \left (a^3 x^2+a\right )} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.036, size = 41, normalized size = 0.8 \begin{align*} -{\frac{2\,{a}^{2}{x}^{2}-2\,ax+3}{ \left ( 5\,{a}^{2}{x}^{2}+5 \right ){c}^{2}{{\rm e}^{\arctan \left ( ax \right ) }}a}} \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{e^{\left (-\arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{2}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.79043, size = 93, normalized size = 1.72 \begin{align*} -\frac{{\left (2 \, a^{2} x^{2} - 2 \, a x + 3\right )} e^{\left (-\arctan \left (a x\right )\right )}}{5 \,{\left (a^{3} c^{2} x^{2} + a c^{2}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \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{e^{\left (-\arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{2}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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