Integrand size = 24, antiderivative size = 126 \[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\frac {i a^2 e^{n \arctan (a x)} \left (-2+i n+n^2\right )}{2 c n}-\frac {e^{n \arctan (a x)}}{2 c x^2}-\frac {a e^{n \arctan (a x)} n}{2 c x}-\frac {i a^2 e^{n \arctan (a x)} \left (-2+n^2\right ) \operatorname {Hypergeometric2F1}\left (1,-\frac {i n}{2},1-\frac {i n}{2},e^{2 i \arctan (a x)}\right )}{c n} \]
[Out]
Time = 0.12 (sec) , antiderivative size = 233, normalized size of antiderivative = 1.85, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {5190, 105, 156, 160, 12, 133} \[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\frac {i a^2 \left (2-n^2\right ) (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}} \operatorname {Hypergeometric2F1}\left (1,-\frac {i n}{2},1-\frac {i n}{2},\frac {i a x+1}{1-i a x}\right )}{c n}-\frac {a^2 \left (-i n^2+n+2 i\right ) (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c n}-\frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x^2}-\frac {a n (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x} \]
[In]
[Out]
Rule 12
Rule 105
Rule 133
Rule 156
Rule 160
Rule 5190
Rubi steps \begin{align*} \text {integral}& = \frac {\int \frac {(1-i a x)^{-1+\frac {i n}{2}} (1+i a x)^{-1-\frac {i n}{2}}}{x^3} \, dx}{c} \\ & = -\frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x^2}-\frac {\int \frac {(1-i a x)^{-1+\frac {i n}{2}} (1+i a x)^{-1-\frac {i n}{2}} \left (-a n+2 a^2 x\right )}{x^2} \, dx}{2 c} \\ & = -\frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x^2}-\frac {a n (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x}+\frac {\int \frac {(1-i a x)^{-1+\frac {i n}{2}} (1+i a x)^{-1-\frac {i n}{2}} \left (-a^2 \left (2-n^2\right )-a^3 n x\right )}{x} \, dx}{2 c} \\ & = -\frac {a^2 \left (2 i+n-i n^2\right ) (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c n}-\frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x^2}-\frac {a n (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x}-\frac {\int \frac {a^3 n \left (2-n^2\right ) (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-1-\frac {i n}{2}}}{x} \, dx}{2 a c n} \\ & = -\frac {a^2 \left (2 i+n-i n^2\right ) (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c n}-\frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x^2}-\frac {a n (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x}-\frac {\left (a^2 \left (2-n^2\right )\right ) \int \frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-1-\frac {i n}{2}}}{x} \, dx}{2 c} \\ & = -\frac {a^2 \left (2 i+n-i n^2\right ) (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c n}-\frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x^2}-\frac {a n (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}}}{2 c x}+\frac {i a^2 \left (2-n^2\right ) (1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}} \operatorname {Hypergeometric2F1}\left (1,-\frac {i n}{2},1-\frac {i n}{2},\frac {1+i a x}{1-i a x}\right )}{c n} \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 174, normalized size of antiderivative = 1.38 \[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\frac {(1-i a x)^{\frac {i n}{2}} (1+i a x)^{-\frac {i n}{2}} \left (i (-2 i+n) (-i+a x) \left (-2 a^2 x^2+a n^2 x (i+a x)+i n \left (1+a^2 x^2\right )\right )+2 a^2 n \left (-2+n^2\right ) x^2 (1-i a x) \operatorname {Hypergeometric2F1}\left (1,1+\frac {i n}{2},2+\frac {i n}{2},\frac {i+a x}{i-a x}\right )\right )}{2 c n (-2 i+n) x^2 (-i+a x)} \]
[In]
[Out]
\[\int \frac {{\mathrm e}^{n \arctan \left (a x \right )}}{x^{3} \left (a^{2} c \,x^{2}+c \right )}d x\]
[In]
[Out]
\[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int { \frac {e^{\left (n \arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )} x^{3}} \,d x } \]
[In]
[Out]
\[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\frac {\int \frac {e^{n \operatorname {atan}{\left (a x \right )}}}{a^{2} x^{5} + x^{3}}\, dx}{c} \]
[In]
[Out]
\[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int { \frac {e^{\left (n \arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )} x^{3}} \,d x } \]
[In]
[Out]
\[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int { \frac {e^{\left (n \arctan \left (a x\right )\right )}}{{\left (a^{2} c x^{2} + c\right )} x^{3}} \,d x } \]
[In]
[Out]
Timed out. \[ \int \frac {e^{n \arctan (a x)}}{x^3 \left (c+a^2 c x^2\right )} \, dx=\int \frac {{\mathrm {e}}^{n\,\mathrm {atan}\left (a\,x\right )}}{x^3\,\left (c\,a^2\,x^2+c\right )} \,d x \]
[In]
[Out]