Integrand size = 23, antiderivative size = 38 \[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=-\frac {e^{-2 \arctan (a x)} (2-a x)}{5 a c \sqrt {c+a^2 c x^2}} \]
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Time = 0.03 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.043, Rules used = {5177} \[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=-\frac {(2-a x) e^{-2 \arctan (a x)}}{5 a c \sqrt {a^2 c x^2+c}} \]
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Rule 5177
Rubi steps \begin{align*} \text {integral}& = -\frac {e^{-2 \arctan (a x)} (2-a x)}{5 a c \sqrt {c+a^2 c x^2}} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.97 \[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {e^{-2 \arctan (a x)} (-2+a x)}{5 a c \sqrt {c+a^2 c x^2}} \]
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Time = 0.22 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.08
method | result | size |
gosper | \(\frac {\left (a^{2} x^{2}+1\right ) \left (a x -2\right ) {\mathrm e}^{-2 \arctan \left (a x \right )}}{5 a \left (a^{2} c \,x^{2}+c \right )^{\frac {3}{2}}}\) | \(41\) |
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none
Time = 0.28 (sec) , antiderivative size = 44, normalized size of antiderivative = 1.16 \[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {\sqrt {a^{2} c x^{2} + c} {\left (a x - 2\right )} e^{\left (-2 \, \arctan \left (a x\right )\right )}}{5 \, {\left (a^{3} c^{2} x^{2} + a c^{2}\right )}} \]
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\[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\int \frac {e^{- 2 \operatorname {atan}{\left (a x \right )}}}{\left (c \left (a^{2} x^{2} + 1\right )\right )^{\frac {3}{2}}}\, dx \]
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\[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\int { \frac {e^{\left (-2 \, \arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{\frac {3}{2}}} \,d x } \]
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\[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\int { \frac {e^{\left (-2 \, \arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )}^{\frac {3}{2}}} \,d x } \]
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Time = 0.20 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.92 \[ \int \frac {e^{-2 \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {{\mathrm {e}}^{-2\,\mathrm {atan}\left (a\,x\right )}\,\left (\frac {x}{5\,c}-\frac {2}{5\,a\,c}\right )}{\sqrt {c\,a^2\,x^2+c}} \]
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