Integrand size = 24, antiderivative size = 133 \[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=\frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {5 \arctan (a x)^{3/2} \cos (4 \arctan (a x))}{256 a^3 c^3}-\frac {15 \sqrt {\frac {\pi }{2}} \operatorname {FresnelS}\left (2 \sqrt {\frac {2}{\pi }} \sqrt {\arctan (a x)}\right )}{4096 a^3 c^3}+\frac {15 \sqrt {\arctan (a x)} \sin (4 \arctan (a x))}{2048 a^3 c^3}-\frac {\arctan (a x)^{5/2} \sin (4 \arctan (a x))}{32 a^3 c^3} \]
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Time = 0.14 (sec) , antiderivative size = 133, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.208, Rules used = {5090, 4491, 3377, 3386, 3432} \[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=-\frac {15 \sqrt {\frac {\pi }{2}} \operatorname {FresnelS}\left (2 \sqrt {\frac {2}{\pi }} \sqrt {\arctan (a x)}\right )}{4096 a^3 c^3}+\frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {\arctan (a x)^{5/2} \sin (4 \arctan (a x))}{32 a^3 c^3}+\frac {15 \sqrt {\arctan (a x)} \sin (4 \arctan (a x))}{2048 a^3 c^3}-\frac {5 \arctan (a x)^{3/2} \cos (4 \arctan (a x))}{256 a^3 c^3} \]
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Rule 3377
Rule 3386
Rule 3432
Rule 4491
Rule 5090
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int x^{5/2} \cos ^2(x) \sin ^2(x) \, dx,x,\arctan (a x)\right )}{a^3 c^3} \\ & = \frac {\text {Subst}\left (\int \left (\frac {x^{5/2}}{8}-\frac {1}{8} x^{5/2} \cos (4 x)\right ) \, dx,x,\arctan (a x)\right )}{a^3 c^3} \\ & = \frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {\text {Subst}\left (\int x^{5/2} \cos (4 x) \, dx,x,\arctan (a x)\right )}{8 a^3 c^3} \\ & = \frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {\arctan (a x)^{5/2} \sin (4 \arctan (a x))}{32 a^3 c^3}+\frac {5 \text {Subst}\left (\int x^{3/2} \sin (4 x) \, dx,x,\arctan (a x)\right )}{64 a^3 c^3} \\ & = \frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {5 \arctan (a x)^{3/2} \cos (4 \arctan (a x))}{256 a^3 c^3}-\frac {\arctan (a x)^{5/2} \sin (4 \arctan (a x))}{32 a^3 c^3}+\frac {15 \text {Subst}\left (\int \sqrt {x} \cos (4 x) \, dx,x,\arctan (a x)\right )}{512 a^3 c^3} \\ & = \frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {5 \arctan (a x)^{3/2} \cos (4 \arctan (a x))}{256 a^3 c^3}+\frac {15 \sqrt {\arctan (a x)} \sin (4 \arctan (a x))}{2048 a^3 c^3}-\frac {\arctan (a x)^{5/2} \sin (4 \arctan (a x))}{32 a^3 c^3}-\frac {15 \text {Subst}\left (\int \frac {\sin (4 x)}{\sqrt {x}} \, dx,x,\arctan (a x)\right )}{4096 a^3 c^3} \\ & = \frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {5 \arctan (a x)^{3/2} \cos (4 \arctan (a x))}{256 a^3 c^3}+\frac {15 \sqrt {\arctan (a x)} \sin (4 \arctan (a x))}{2048 a^3 c^3}-\frac {\arctan (a x)^{5/2} \sin (4 \arctan (a x))}{32 a^3 c^3}-\frac {15 \text {Subst}\left (\int \sin \left (4 x^2\right ) \, dx,x,\sqrt {\arctan (a x)}\right )}{2048 a^3 c^3} \\ & = \frac {\arctan (a x)^{7/2}}{28 a^3 c^3}-\frac {5 \arctan (a x)^{3/2} \cos (4 \arctan (a x))}{256 a^3 c^3}-\frac {15 \sqrt {\frac {\pi }{2}} \operatorname {FresnelS}\left (2 \sqrt {\frac {2}{\pi }} \sqrt {\arctan (a x)}\right )}{4096 a^3 c^3}+\frac {15 \sqrt {\arctan (a x)} \sin (4 \arctan (a x))}{2048 a^3 c^3}-\frac {\arctan (a x)^{5/2} \sin (4 \arctan (a x))}{32 a^3 c^3} \\ \end{align*}
Result contains complex when optimal does not.
Time = 0.45 (sec) , antiderivative size = 185, normalized size of antiderivative = 1.39 \[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=\frac {32 \arctan (a x) \left (-105 a x \left (-1+a^2 x^2\right )-70 \left (1-6 a^2 x^2+a^4 x^4\right ) \arctan (a x)+448 a x \left (-1+a^2 x^2\right ) \arctan (a x)^2+128 \left (1+a^2 x^2\right )^2 \arctan (a x)^3\right )+105 \left (1+a^2 x^2\right )^2 \sqrt {-i \arctan (a x)} \Gamma \left (\frac {1}{2},-4 i \arctan (a x)\right )+105 \left (1+a^2 x^2\right )^2 \sqrt {i \arctan (a x)} \Gamma \left (\frac {1}{2},4 i \arctan (a x)\right )}{114688 a^3 c^3 \left (1+a^2 x^2\right )^2 \sqrt {\arctan (a x)}} \]
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Time = 1.48 (sec) , antiderivative size = 96, normalized size of antiderivative = 0.72
\[-\frac {-2048 \arctan \left (a x \right )^{4}+1792 \arctan \left (a x \right )^{3} \sin \left (4 \arctan \left (a x \right )\right )+1120 \arctan \left (a x \right )^{2} \cos \left (4 \arctan \left (a x \right )\right )+105 \,\operatorname {FresnelS}\left (\frac {2 \sqrt {2}\, \sqrt {\arctan \left (a x \right )}}{\sqrt {\pi }}\right ) \sqrt {2}\, \sqrt {\arctan \left (a x \right )}\, \sqrt {\pi }-420 \sin \left (4 \arctan \left (a x \right )\right ) \arctan \left (a x \right )}{57344 c^{3} a^{3} \sqrt {\arctan \left (a x \right )}}\]
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Exception generated. \[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=\text {Exception raised: TypeError} \]
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\[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=\frac {\int \frac {x^{2} \operatorname {atan}^{\frac {5}{2}}{\left (a x \right )}}{a^{6} x^{6} + 3 a^{4} x^{4} + 3 a^{2} x^{2} + 1}\, dx}{c^{3}} \]
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Exception generated. \[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=\text {Exception raised: RuntimeError} \]
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\[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=\int { \frac {x^{2} \arctan \left (a x\right )^{\frac {5}{2}}}{{\left (a^{2} c x^{2} + c\right )}^{3}} \,d x } \]
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Timed out. \[ \int \frac {x^2 \arctan (a x)^{5/2}}{\left (c+a^2 c x^2\right )^3} \, dx=\int \frac {x^2\,{\mathrm {atan}\left (a\,x\right )}^{5/2}}{{\left (c\,a^2\,x^2+c\right )}^3} \,d x \]
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