Integrand size = 22, antiderivative size = 79 \[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\frac {\sqrt {\arctan (a x)}}{4 a^2 c^2}-\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (1+a^2 x^2\right )}+\frac {\sqrt {\pi } \operatorname {FresnelC}\left (\frac {2 \sqrt {\arctan (a x)}}{\sqrt {\pi }}\right )}{8 a^2 c^2} \]
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Time = 0.09 (sec) , antiderivative size = 79, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.227, Rules used = {5050, 5024, 3393, 3385, 3433} \[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\frac {\sqrt {\pi } \operatorname {FresnelC}\left (\frac {2 \sqrt {\arctan (a x)}}{\sqrt {\pi }}\right )}{8 a^2 c^2}-\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (a^2 x^2+1\right )}+\frac {\sqrt {\arctan (a x)}}{4 a^2 c^2} \]
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Rule 3385
Rule 3393
Rule 3433
Rule 5024
Rule 5050
Rubi steps \begin{align*} \text {integral}& = -\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (1+a^2 x^2\right )}+\frac {\int \frac {1}{\left (c+a^2 c x^2\right )^2 \sqrt {\arctan (a x)}} \, dx}{4 a} \\ & = -\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (1+a^2 x^2\right )}+\frac {\text {Subst}\left (\int \frac {\cos ^2(x)}{\sqrt {x}} \, dx,x,\arctan (a x)\right )}{4 a^2 c^2} \\ & = -\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (1+a^2 x^2\right )}+\frac {\text {Subst}\left (\int \left (\frac {1}{2 \sqrt {x}}+\frac {\cos (2 x)}{2 \sqrt {x}}\right ) \, dx,x,\arctan (a x)\right )}{4 a^2 c^2} \\ & = \frac {\sqrt {\arctan (a x)}}{4 a^2 c^2}-\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (1+a^2 x^2\right )}+\frac {\text {Subst}\left (\int \frac {\cos (2 x)}{\sqrt {x}} \, dx,x,\arctan (a x)\right )}{8 a^2 c^2} \\ & = \frac {\sqrt {\arctan (a x)}}{4 a^2 c^2}-\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (1+a^2 x^2\right )}+\frac {\text {Subst}\left (\int \cos \left (2 x^2\right ) \, dx,x,\sqrt {\arctan (a x)}\right )}{4 a^2 c^2} \\ & = \frac {\sqrt {\arctan (a x)}}{4 a^2 c^2}-\frac {\sqrt {\arctan (a x)}}{2 a^2 c^2 \left (1+a^2 x^2\right )}+\frac {\sqrt {\pi } \operatorname {FresnelC}\left (\frac {2 \sqrt {\arctan (a x)}}{\sqrt {\pi }}\right )}{8 a^2 c^2} \\ \end{align*}
Result contains complex when optimal does not.
Time = 0.25 (sec) , antiderivative size = 136, normalized size of antiderivative = 1.72 \[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\frac {4 \sqrt {\pi } \operatorname {FresnelC}\left (\frac {2 \sqrt {\arctan (a x)}}{\sqrt {\pi }}\right )+\frac {\frac {16 \left (-1+a^2 x^2\right ) \arctan (a x)}{1+a^2 x^2}-i \sqrt {2} \sqrt {-i \arctan (a x)} \Gamma \left (\frac {1}{2},-2 i \arctan (a x)\right )+i \sqrt {2} \sqrt {i \arctan (a x)} \Gamma \left (\frac {1}{2},2 i \arctan (a x)\right )}{\sqrt {\arctan (a x)}}}{64 a^2 c^2} \]
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Time = 5.68 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.57
method | result | size |
default | \(\frac {-2 \sqrt {\arctan \left (a x \right )}\, \sqrt {\pi }\, \cos \left (2 \arctan \left (a x \right )\right )+\pi \,\operatorname {FresnelC}\left (\frac {2 \sqrt {\arctan \left (a x \right )}}{\sqrt {\pi }}\right )}{8 c^{2} a^{2} \sqrt {\pi }}\) | \(45\) |
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Exception generated. \[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\text {Exception raised: TypeError} \]
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\[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\frac {\int \frac {x \sqrt {\operatorname {atan}{\left (a x \right )}}}{a^{4} x^{4} + 2 a^{2} x^{2} + 1}\, dx}{c^{2}} \]
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Exception generated. \[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\text {Exception raised: RuntimeError} \]
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\[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\int { \frac {x \sqrt {\arctan \left (a x\right )}}{{\left (a^{2} c x^{2} + c\right )}^{2}} \,d x } \]
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Timed out. \[ \int \frac {x \sqrt {\arctan (a x)}}{\left (c+a^2 c x^2\right )^2} \, dx=\int \frac {x\,\sqrt {\mathrm {atan}\left (a\,x\right )}}{{\left (c\,a^2\,x^2+c\right )}^2} \,d x \]
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