Integrand size = 25, antiderivative size = 49 \[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {i \sqrt {1+a^2 x^2}}{2 a c (1+i a x)^2 \sqrt {c+a^2 c x^2}} \]
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Time = 0.05 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.120, Rules used = {5184, 5181, 32} \[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {i \sqrt {a^2 x^2+1}}{2 a c (1+i a x)^2 \sqrt {a^2 c x^2+c}} \]
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Rule 32
Rule 5181
Rule 5184
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {1+a^2 x^2} \int \frac {e^{-3 i \arctan (a x)}}{\left (1+a^2 x^2\right )^{3/2}} \, dx}{c \sqrt {c+a^2 c x^2}} \\ & = \frac {\sqrt {1+a^2 x^2} \int \frac {1}{(1+i a x)^3} \, dx}{c \sqrt {c+a^2 c x^2}} \\ & = \frac {i \sqrt {1+a^2 x^2}}{2 a c (1+i a x)^2 \sqrt {c+a^2 c x^2}} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.98 \[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=-\frac {i \sqrt {1+a^2 x^2}}{2 a c (-i+a x)^2 \sqrt {c+a^2 c x^2}} \]
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Time = 0.25 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.86
method | result | size |
risch | \(-\frac {i \sqrt {a^{2} x^{2}+1}}{2 c \sqrt {c \left (a^{2} x^{2}+1\right )}\, a \left (a x -i\right )^{2}}\) | \(42\) |
default | \(\frac {i \sqrt {c \left (a^{2} x^{2}+1\right )}}{2 \sqrt {a^{2} x^{2}+1}\, c^{2} a \left (i a x +1\right )^{2}}\) | \(43\) |
gosper | \(\frac {\left (-a x +i\right ) \left (a^{2} x^{2}+1\right )^{\frac {3}{2}}}{2 a \left (i a x +1\right )^{3} \left (a^{2} c \,x^{2}+c \right )^{\frac {3}{2}}}\) | \(45\) |
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Time = 0.26 (sec) , antiderivative size = 71, normalized size of antiderivative = 1.45 \[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {\sqrt {a^{2} c x^{2} + c} \sqrt {a^{2} x^{2} + 1} {\left (-i \, a x^{2} - 2 \, x\right )}}{2 \, {\left (a^{4} c^{2} x^{4} - 2 i \, a^{3} c^{2} x^{3} - 2 i \, a c^{2} x - c^{2}\right )}} \]
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\[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=i \left (\int \frac {\sqrt {a^{2} x^{2} + 1}}{a^{5} c x^{5} \sqrt {a^{2} c x^{2} + c} - 3 i a^{4} c x^{4} \sqrt {a^{2} c x^{2} + c} - 2 a^{3} c x^{3} \sqrt {a^{2} c x^{2} + c} - 2 i a^{2} c x^{2} \sqrt {a^{2} c x^{2} + c} - 3 a c x \sqrt {a^{2} c x^{2} + c} + i c \sqrt {a^{2} c x^{2} + c}}\, dx + \int \frac {a^{2} x^{2} \sqrt {a^{2} x^{2} + 1}}{a^{5} c x^{5} \sqrt {a^{2} c x^{2} + c} - 3 i a^{4} c x^{4} \sqrt {a^{2} c x^{2} + c} - 2 a^{3} c x^{3} \sqrt {a^{2} c x^{2} + c} - 2 i a^{2} c x^{2} \sqrt {a^{2} c x^{2} + c} - 3 a c x \sqrt {a^{2} c x^{2} + c} + i c \sqrt {a^{2} c x^{2} + c}}\, dx\right ) \]
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Time = 0.18 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.59 \[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {1}{2 i \, a^{3} c^{\frac {3}{2}} x^{2} + 4 \, a^{2} c^{\frac {3}{2}} x - 2 i \, a c^{\frac {3}{2}}} \]
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Exception generated. \[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\text {Exception raised: TypeError} \]
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Time = 1.23 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.00 \[ \int \frac {e^{-3 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=-\frac {\sqrt {c\,\left (a^2\,x^2+1\right )}\,\sqrt {a^2\,x^2+1}}{2\,a\,c^2\,\left (a\,x+1{}\mathrm {i}\right )\,{\left (1+a\,x\,1{}\mathrm {i}\right )}^3} \]
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