Optimal. Leaf size=29 \[ \frac{1}{5} \text{CosIntegral}(2 x) \sin (5 x)-\frac{\text{Si}(3 x)}{10}-\frac{\text{Si}(7 x)}{10} \]
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Rubi [A] time = 0.0534955, antiderivative size = 29, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 4, integrand size = 9, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.444, Rules used = {6512, 12, 4430, 3299} \[ \frac{1}{5} \text{CosIntegral}(2 x) \sin (5 x)-\frac{\text{Si}(3 x)}{10}-\frac{\text{Si}(7 x)}{10} \]
Antiderivative was successfully verified.
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Rule 6512
Rule 12
Rule 4430
Rule 3299
Rubi steps
\begin{align*} \int \cos (5 x) \text{Ci}(2 x) \, dx &=\frac{1}{5} \text{Ci}(2 x) \sin (5 x)-\frac{2}{5} \int \frac{\cos (2 x) \sin (5 x)}{2 x} \, dx\\ &=\frac{1}{5} \text{Ci}(2 x) \sin (5 x)-\frac{1}{5} \int \frac{\cos (2 x) \sin (5 x)}{x} \, dx\\ &=\frac{1}{5} \text{Ci}(2 x) \sin (5 x)-\frac{1}{5} \int \left (\frac{\sin (3 x)}{2 x}+\frac{\sin (7 x)}{2 x}\right ) \, dx\\ &=\frac{1}{5} \text{Ci}(2 x) \sin (5 x)-\frac{1}{10} \int \frac{\sin (3 x)}{x} \, dx-\frac{1}{10} \int \frac{\sin (7 x)}{x} \, dx\\ &=\frac{1}{5} \text{Ci}(2 x) \sin (5 x)-\frac{\text{Si}(3 x)}{10}-\frac{\text{Si}(7 x)}{10}\\ \end{align*}
Mathematica [A] time = 0.024018, size = 27, normalized size = 0.93 \[ \frac{1}{10} (2 \text{CosIntegral}(2 x) \sin (5 x)-\text{Si}(3 x)-\text{Si}(7 x)) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.095, size = 24, normalized size = 0.8 \begin{align*} -{\frac{{\it Si} \left ( 3\,x \right ) }{10}}-{\frac{{\it Si} \left ( 7\,x \right ) }{10}}+{\frac{{\it Ci} \left ( 2\,x \right ) \sin \left ( 5\,x \right ) }{5}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\rm Ci}\left (2 \, x\right ) \cos \left (5 \, x\right )\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: UnboundLocalError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \cos{\left (5 x \right )} \operatorname{Ci}{\left (2 x \right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.2446, size = 31, normalized size = 1.07 \begin{align*} \frac{1}{5} \, \operatorname{Ci}\left (2 \, x\right ) \sin \left (5 \, x\right ) - \frac{1}{10} \, \operatorname{Si}\left (7 \, x\right ) - \frac{1}{10} \, \operatorname{Si}\left (3 \, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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