Optimal. Leaf size=124 \[ -\frac{(1-3 a x) e^{-2 \tan ^{-1}(a x)}}{20 a c^4 \left (a^2 x^2+1\right )^3}-\frac{9 (1-a x) e^{-2 \tan ^{-1}(a x)}}{80 a c^4 \left (a^2 x^2+1\right )}-\frac{3 (1-2 a x) e^{-2 \tan ^{-1}(a x)}}{40 a c^4 \left (a^2 x^2+1\right )^2}-\frac{9 e^{-2 \tan ^{-1}(a x)}}{160 a c^4} \]
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Rubi [A] time = 0.120785, antiderivative size = 124, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 2, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.095, Rules used = {5070, 5071} \[ -\frac{(1-3 a x) e^{-2 \tan ^{-1}(a x)}}{20 a c^4 \left (a^2 x^2+1\right )^3}-\frac{9 (1-a x) e^{-2 \tan ^{-1}(a x)}}{80 a c^4 \left (a^2 x^2+1\right )}-\frac{3 (1-2 a x) e^{-2 \tan ^{-1}(a x)}}{40 a c^4 \left (a^2 x^2+1\right )^2}-\frac{9 e^{-2 \tan ^{-1}(a x)}}{160 a c^4} \]
Antiderivative was successfully verified.
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Rule 5070
Rule 5071
Rubi steps
\begin{align*} \int \frac{e^{-2 \tan ^{-1}(a x)}}{\left (c+a^2 c x^2\right )^4} \, dx &=-\frac{e^{-2 \tan ^{-1}(a x)} (1-3 a x)}{20 a c^4 \left (1+a^2 x^2\right )^3}+\frac{3 \int \frac{e^{-2 \tan ^{-1}(a x)}}{\left (c+a^2 c x^2\right )^3} \, dx}{4 c}\\ &=-\frac{e^{-2 \tan ^{-1}(a x)} (1-3 a x)}{20 a c^4 \left (1+a^2 x^2\right )^3}-\frac{3 e^{-2 \tan ^{-1}(a x)} (1-2 a x)}{40 a c^4 \left (1+a^2 x^2\right )^2}+\frac{9 \int \frac{e^{-2 \tan ^{-1}(a x)}}{\left (c+a^2 c x^2\right )^2} \, dx}{20 c^2}\\ &=-\frac{e^{-2 \tan ^{-1}(a x)} (1-3 a x)}{20 a c^4 \left (1+a^2 x^2\right )^3}-\frac{3 e^{-2 \tan ^{-1}(a x)} (1-2 a x)}{40 a c^4 \left (1+a^2 x^2\right )^2}-\frac{9 e^{-2 \tan ^{-1}(a x)} (1-a x)}{80 a c^4 \left (1+a^2 x^2\right )}+\frac{9 \int \frac{e^{-2 \tan ^{-1}(a x)}}{c+a^2 c x^2} \, dx}{80 c^3}\\ &=-\frac{9 e^{-2 \tan ^{-1}(a x)}}{160 a c^4}-\frac{e^{-2 \tan ^{-1}(a x)} (1-3 a x)}{20 a c^4 \left (1+a^2 x^2\right )^3}-\frac{3 e^{-2 \tan ^{-1}(a x)} (1-2 a x)}{40 a c^4 \left (1+a^2 x^2\right )^2}-\frac{9 e^{-2 \tan ^{-1}(a x)} (1-a x)}{80 a c^4 \left (1+a^2 x^2\right )}\\ \end{align*}
Mathematica [C] time = 0.32242, size = 121, normalized size = 0.98 \[ \frac{8 c (3 a x-1) e^{-2 \tan ^{-1}(a x)}-3 \left (a^2 c x^2+c\right ) \left ((4-8 a x) e^{-2 \tan ^{-1}(a x)}+3 (1-i a x)^{-i} (1+i a x)^i (a x-i) (a x+i) \left (a^2 x^2-2 a x+3\right )\right )}{160 a c^2 \left (a^2 c x^2+c\right )^3} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.039, size = 75, normalized size = 0.6 \begin{align*} -{\frac{9\,{a}^{6}{x}^{6}-18\,{a}^{5}{x}^{5}+45\,{a}^{4}{x}^{4}-60\,{a}^{3}{x}^{3}+75\,{a}^{2}{x}^{2}-66\,ax+47}{160\,{c}^{4} \left ({a}^{2}{x}^{2}+1 \right ) ^{3}{{\rm e}^{2\,\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 (-2 \, \arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.99839, size = 215, normalized size = 1.73 \begin{align*} -\frac{{\left (9 \, a^{6} x^{6} - 18 \, a^{5} x^{5} + 45 \, a^{4} x^{4} - 60 \, a^{3} x^{3} + 75 \, a^{2} x^{2} - 66 \, a x + 47\right )} e^{\left (-2 \, \arctan \left (a x\right )\right )}}{160 \,{\left (a^{7} c^{4} x^{6} + 3 \, a^{5} c^{4} x^{4} + 3 \, a^{3} c^{4} x^{2} + a c^{4}\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 (-2 \, \arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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