Optimal. Leaf size=27 \[ \frac{2}{13} e^{-3 x} \sin (2 x)-\frac{3}{13} e^{-3 x} \cos (2 x) \]
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Rubi [A] time = 0.0105735, antiderivative size = 27, normalized size of antiderivative = 1., number of steps used = 1, number of rules used = 1, integrand size = 10, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.1, Rules used = {4433} \[ \frac{2}{13} e^{-3 x} \sin (2 x)-\frac{3}{13} e^{-3 x} \cos (2 x) \]
Antiderivative was successfully verified.
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Rule 4433
Rubi steps
\begin{align*} \int e^{-3 x} \cos (2 x) \, dx &=-\frac{3}{13} e^{-3 x} \cos (2 x)+\frac{2}{13} e^{-3 x} \sin (2 x)\\ \end{align*}
Mathematica [A] time = 0.0263124, size = 22, normalized size = 0.81 \[ \frac{1}{13} e^{-3 x} (2 \sin (2 x)-3 \cos (2 x)) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.007, size = 22, normalized size = 0.8 \begin{align*} -{\frac{3\,{{\rm e}^{-3\,x}}\cos \left ( 2\,x \right ) }{13}}+{\frac{2\,{{\rm e}^{-3\,x}}\sin \left ( 2\,x \right ) }{13}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.946883, size = 26, normalized size = 0.96 \begin{align*} -\frac{1}{13} \,{\left (3 \, \cos \left (2 \, x\right ) - 2 \, \sin \left (2 \, x\right )\right )} e^{\left (-3 \, x\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.19539, size = 68, normalized size = 2.52 \begin{align*} -\frac{3}{13} \, \cos \left (2 \, x\right ) e^{\left (-3 \, x\right )} + \frac{2}{13} \, e^{\left (-3 \, x\right )} \sin \left (2 \, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.477693, size = 26, normalized size = 0.96 \begin{align*} \frac{2 e^{- 3 x} \sin{\left (2 x \right )}}{13} - \frac{3 e^{- 3 x} \cos{\left (2 x \right )}}{13} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.10919, size = 26, normalized size = 0.96 \begin{align*} -\frac{1}{13} \,{\left (3 \, \cos \left (2 \, x\right ) - 2 \, \sin \left (2 \, x\right )\right )} e^{\left (-3 \, x\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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