Optimal. Leaf size=39 \[ -\frac {x^{m+1}}{m+1}+\frac {2 x^{m+1} \, _2F_1(1,m+1;m+2;-i a x)}{m+1} \]
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Rubi [A] time = 0.02, antiderivative size = 39, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {5062, 80, 64} \[ -\frac {x^{m+1}}{m+1}+\frac {2 x^{m+1} \text {Hypergeometric2F1}(1,m+1,m+2,-i a x)}{m+1} \]
Antiderivative was successfully verified.
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Rule 64
Rule 80
Rule 5062
Rubi steps
\begin {align*} \int e^{-2 i \tan ^{-1}(a x)} x^m \, dx &=\int \frac {x^m (1-i a x)}{1+i a x} \, dx\\ &=-\frac {x^{1+m}}{1+m}+2 \int \frac {x^m}{1+i a x} \, dx\\ &=-\frac {x^{1+m}}{1+m}+\frac {2 x^{1+m} \, _2F_1(1,1+m;2+m;-i a x)}{1+m}\\ \end {align*}
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Mathematica [A] time = 0.01, size = 29, normalized size = 0.74 \[ \frac {x^{m+1} (-1+2 \, _2F_1(1,m+1;m+2;-i a x))}{m+1} \]
Antiderivative was successfully verified.
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fricas [F] time = 0.46, size = 0, normalized size = 0.00 \[ {\rm integral}\left (-\frac {{\left (a x + i\right )} x^{m}}{a x - i}, x\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {{\left (a^{2} x^{2} + 1\right )} x^{m}}{{\left (i \, a x + 1\right )}^{2}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [C] time = 0.42, size = 158, normalized size = 4.05 \[ \frac {i \left (i a \right )^{-m} \left (\frac {x^{m} \left (i a \right )^{m} \left (-a^{2} m \,x^{2}-i a m x -2 i a x -m^{2}-3 m -2\right )}{\left (1+m \right ) m \left (i a x +1\right )}+x^{m} \left (i a \right )^{m} \left (2+m \right ) \Phi \left (-i a x , 1, m\right )\right )}{a}-\frac {i \left (i a \right )^{-m} \left (\frac {x^{m} \left (i a \right )^{m} \left (-1-m \right )}{\left (1+m \right ) \left (i a x +1\right )}+x^{m} \left (i a \right )^{m} m \Phi \left (-i a x , 1, m\right )\right )}{a} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {{\left (a^{2} x^{2} + 1\right )} x^{m}}{{\left (i \, a x + 1\right )}^{2}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.03 \[ \int \frac {x^m\,\left (a^2\,x^2+1\right )}{{\left (1+a\,x\,1{}\mathrm {i}\right )}^2} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [B] time = 4.06, size = 136, normalized size = 3.49 \[ - \frac {i a m x^{2} x^{m} \Phi \left (a x e^{\frac {3 i \pi }{2}}, 1, m + 2\right ) \Gamma \left (m + 2\right )}{\Gamma \left (m + 3\right )} - \frac {2 i a x^{2} x^{m} \Phi \left (a x e^{\frac {3 i \pi }{2}}, 1, m + 2\right ) \Gamma \left (m + 2\right )}{\Gamma \left (m + 3\right )} + \frac {m x x^{m} \Phi \left (a x e^{\frac {3 i \pi }{2}}, 1, m + 1\right ) \Gamma \left (m + 1\right )}{\Gamma \left (m + 2\right )} + \frac {x x^{m} \Phi \left (a x e^{\frac {3 i \pi }{2}}, 1, m + 1\right ) \Gamma \left (m + 1\right )}{\Gamma \left (m + 2\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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