Optimal. Leaf size=101 \[ \frac {2^{\left (1+\frac {i}{2}\right )+p} (1-i a x)^{\left (1-\frac {i}{2}\right )+p} \left (1+a^2 x^2\right )^{-p} \left (c+a^2 c x^2\right )^p \, _2F_1\left (-\frac {i}{2}-p,\left (1-\frac {i}{2}\right )+p;\left (2-\frac {i}{2}\right )+p;\frac {1}{2} (1-i a x)\right )}{a ((-1-2 i)-2 i p)} \]
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Rubi [A]
time = 0.06, antiderivative size = 101, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 3, integrand size = 21, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {5184, 5181, 71}
\begin {gather*} \frac {2^{p+\left (1+\frac {i}{2}\right )} (1-i a x)^{p+\left (1-\frac {i}{2}\right )} \left (a^2 x^2+1\right )^{-p} \left (a^2 c x^2+c\right )^p \, _2F_1\left (-p-\frac {i}{2},p+\left (1-\frac {i}{2}\right );p+\left (2-\frac {i}{2}\right );\frac {1}{2} (1-i a x)\right )}{a (-2 i p-(1+2 i))} \end {gather*}
Antiderivative was successfully verified.
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Rule 71
Rule 5181
Rule 5184
Rubi steps
\begin {align*} \int e^{-\tan ^{-1}(a x)} \left (c+a^2 c x^2\right )^p \, dx &=\left (\left (1+a^2 x^2\right )^{-p} \left (c+a^2 c x^2\right )^p\right ) \int e^{-\tan ^{-1}(a x)} \left (1+a^2 x^2\right )^p \, dx\\ &=\left (\left (1+a^2 x^2\right )^{-p} \left (c+a^2 c x^2\right )^p\right ) \int (1-i a x)^{-\frac {i}{2}+p} (1+i a x)^{\frac {i}{2}+p} \, dx\\ &=\frac {2^{\left (1+\frac {i}{2}\right )+p} (1-i a x)^{\left (1-\frac {i}{2}\right )+p} \left (1+a^2 x^2\right )^{-p} \left (c+a^2 c x^2\right )^p \, _2F_1\left (-\frac {i}{2}-p,\left (1-\frac {i}{2}\right )+p;\left (2-\frac {i}{2}\right )+p;\frac {1}{2} (1-i a x)\right )}{a ((-1-2 i)-2 i p)}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 102, normalized size = 1.01 \begin {gather*} \frac {i 2^{\frac {i}{2}+p} (1-i a x)^{\left (1-\frac {i}{2}\right )+p} \left (1+a^2 x^2\right )^{-p} \left (c+a^2 c x^2\right )^p \, _2F_1\left (-\frac {i}{2}-p,\left (1-\frac {i}{2}\right )+p;\left (2-\frac {i}{2}\right )+p;\frac {1}{2} (1-i a x)\right )}{a \left (\left (1-\frac {i}{2}\right )+p\right )} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.02, size = 0, normalized size = 0.00 \[\int \left (a^{2} c \,x^{2}+c \right )^{p} {\mathrm e}^{-\arctan \left (a x \right )}\, dx\]
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 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \left (c \left (a^{2} x^{2} + 1\right )\right )^{p} e^{- \operatorname {atan}{\left (a x \right )}}\, dx \end {gather*}
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 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int {\mathrm {e}}^{-\mathrm {atan}\left (a\,x\right )}\,{\left (c\,a^2\,x^2+c\right )}^p \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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