Integrand size = 22, antiderivative size = 22 \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\text {Int}\left (\frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)},x\right ) \]
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Not integrable
Time = 0.05 (sec) , antiderivative size = 22, 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 = {} \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx \\ \end{align*}
Not integrable
Time = 1.02 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.09 \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx \]
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Not integrable
Time = 4.40 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.00
\[\int \frac {1}{x^{2} \left (a^{2} c \,x^{2}+c \right )^{2} \arctan \left (a x \right )}d x\]
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Not integrable
Time = 0.23 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.82 \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\int { \frac {1}{{\left (a^{2} c x^{2} + c\right )}^{2} x^{2} \arctan \left (a x\right )} \,d x } \]
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Not integrable
Time = 1.25 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.77 \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\frac {\int \frac {1}{a^{4} x^{6} \operatorname {atan}{\left (a x \right )} + 2 a^{2} x^{4} \operatorname {atan}{\left (a x \right )} + x^{2} \operatorname {atan}{\left (a x \right )}}\, dx}{c^{2}} \]
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Not integrable
Time = 0.27 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.09 \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\int { \frac {1}{{\left (a^{2} c x^{2} + c\right )}^{2} x^{2} \arctan \left (a x\right )} \,d x } \]
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Not integrable
Time = 38.58 (sec) , antiderivative size = 3, normalized size of antiderivative = 0.14 \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\int { \frac {1}{{\left (a^{2} c x^{2} + c\right )}^{2} x^{2} \arctan \left (a x\right )} \,d x } \]
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Not integrable
Time = 0.39 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.09 \[ \int \frac {1}{x^2 \left (c+a^2 c x^2\right )^2 \arctan (a x)} \, dx=\int \frac {1}{x^2\,\mathrm {atan}\left (a\,x\right )\,{\left (c\,a^2\,x^2+c\right )}^2} \,d x \]
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