Integrand size = 20, antiderivative size = 20 \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=\text {Int}\left (\frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3},x\right ) \]
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Not integrable
Time = 0.03 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.00, number of steps used = 0, number of rules used = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {} \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=\int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx \\ \end{align*}
Not integrable
Time = 0.92 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.10 \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=\int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx \]
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Timed out.
\[\int \frac {x \left (a^{2} c \,x^{2}+c \right )^{3}}{\arctan \left (a x \right )^{3}}d x\]
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Not integrable
Time = 0.25 (sec) , antiderivative size = 47, normalized size of antiderivative = 2.35 \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=\int { \frac {{\left (a^{2} c x^{2} + c\right )}^{3} x}{\arctan \left (a x\right )^{3}} \,d x } \]
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Not integrable
Time = 1.62 (sec) , antiderivative size = 61, normalized size of antiderivative = 3.05 \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=c^{3} \left (\int \frac {x}{\operatorname {atan}^{3}{\left (a x \right )}}\, dx + \int \frac {3 a^{2} x^{3}}{\operatorname {atan}^{3}{\left (a x \right )}}\, dx + \int \frac {3 a^{4} x^{5}}{\operatorname {atan}^{3}{\left (a x \right )}}\, dx + \int \frac {a^{6} x^{7}}{\operatorname {atan}^{3}{\left (a x \right )}}\, dx\right ) \]
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Not integrable
Time = 0.39 (sec) , antiderivative size = 196, normalized size of antiderivative = 9.80 \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=\int { \frac {{\left (a^{2} c x^{2} + c\right )}^{3} x}{\arctan \left (a x\right )^{3}} \,d x } \]
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Not integrable
Time = 97.51 (sec) , antiderivative size = 3, normalized size of antiderivative = 0.15 \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=\int { \frac {{\left (a^{2} c x^{2} + c\right )}^{3} x}{\arctan \left (a x\right )^{3}} \,d x } \]
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Not integrable
Time = 0.48 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.10 \[ \int \frac {x \left (c+a^2 c x^2\right )^3}{\arctan (a x)^3} \, dx=\int \frac {x\,{\left (c\,a^2\,x^2+c\right )}^3}{{\mathrm {atan}\left (a\,x\right )}^3} \,d x \]
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