Integrand size = 18, antiderivative size = 18 \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\text {Int}\left (\frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )},x\right ) \]
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Not integrable
Time = 0.03 (sec) , antiderivative size = 18, 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 = {} \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx \\ \end{align*}
Not integrable
Time = 2.88 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.11 \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx \]
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Not integrable
Time = 0.13 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00
\[\int \frac {1}{x^{2} \left (a +b \tan \left (d \,x^{2}+c \right )\right )}d x\]
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Not integrable
Time = 0.24 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.28 \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\int { \frac {1}{{\left (b \tan \left (d x^{2} + c\right ) + a\right )} x^{2}} \,d x } \]
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Not integrable
Time = 0.64 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.94 \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\int \frac {1}{x^{2} \left (a + b \tan {\left (c + d x^{2} \right )}\right )}\, dx \]
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Not integrable
Time = 0.56 (sec) , antiderivative size = 534, normalized size of antiderivative = 29.67 \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\int { \frac {1}{{\left (b \tan \left (d x^{2} + c\right ) + a\right )} x^{2}} \,d x } \]
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Not integrable
Time = 0.46 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.11 \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\int { \frac {1}{{\left (b \tan \left (d x^{2} + c\right ) + a\right )} x^{2}} \,d x } \]
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Not integrable
Time = 4.02 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.11 \[ \int \frac {1}{x^2 \left (a+b \tan \left (c+d x^2\right )\right )} \, dx=\int \frac {1}{x^2\,\left (a+b\,\mathrm {tan}\left (d\,x^2+c\right )\right )} \,d x \]
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