Integrand size = 27, antiderivative size = 84 \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\frac {1}{2} (A b+a B) x+\frac {(3 a A+2 b B) \sin (c+d x)}{3 d}+\frac {(A b+a B) \cos (c+d x) \sin (c+d x)}{2 d}+\frac {b B \cos ^2(c+d x) \sin (c+d x)}{3 d} \]
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Time = 0.13 (sec) , antiderivative size = 84, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {3047, 3102, 2813} \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\frac {(3 a A+2 b B) \sin (c+d x)}{3 d}+\frac {(a B+A b) \sin (c+d x) \cos (c+d x)}{2 d}+\frac {1}{2} x (a B+A b)+\frac {b B \sin (c+d x) \cos ^2(c+d x)}{3 d} \]
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Rule 2813
Rule 3047
Rule 3102
Rubi steps \begin{align*} \text {integral}& = \int \cos (c+d x) \left (a A+(A b+a B) \cos (c+d x)+b B \cos ^2(c+d x)\right ) \, dx \\ & = \frac {b B \cos ^2(c+d x) \sin (c+d x)}{3 d}+\frac {1}{3} \int \cos (c+d x) (3 a A+2 b B+3 (A b+a B) \cos (c+d x)) \, dx \\ & = \frac {1}{2} (A b+a B) x+\frac {(3 a A+2 b B) \sin (c+d x)}{3 d}+\frac {(A b+a B) \cos (c+d x) \sin (c+d x)}{2 d}+\frac {b B \cos ^2(c+d x) \sin (c+d x)}{3 d} \\ \end{align*}
Time = 0.15 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.89 \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\frac {6 A b c+6 a B c+6 A b d x+6 a B d x+3 (4 a A+3 b B) \sin (c+d x)+3 (A b+a B) \sin (2 (c+d x))+b B \sin (3 (c+d x))}{12 d} \]
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Time = 2.05 (sec) , antiderivative size = 65, normalized size of antiderivative = 0.77
method | result | size |
parallelrisch | \(\frac {3 \left (A b +B a \right ) \sin \left (2 d x +2 c \right )+B b \sin \left (3 d x +3 c \right )+3 \left (4 a A +3 B b \right ) \sin \left (d x +c \right )+6 \left (A b +B a \right ) x d}{12 d}\) | \(65\) |
parts | \(\frac {\left (A b +B a \right ) \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )}{d}+\frac {B b \left (2+\cos ^{2}\left (d x +c \right )\right ) \sin \left (d x +c \right )}{3 d}+\frac {\sin \left (d x +c \right ) a A}{d}\) | \(70\) |
derivativedivides | \(\frac {\frac {B b \left (2+\cos ^{2}\left (d x +c \right )\right ) \sin \left (d x +c \right )}{3}+A b \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+B a \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+a A \sin \left (d x +c \right )}{d}\) | \(85\) |
default | \(\frac {\frac {B b \left (2+\cos ^{2}\left (d x +c \right )\right ) \sin \left (d x +c \right )}{3}+A b \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+B a \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+a A \sin \left (d x +c \right )}{d}\) | \(85\) |
risch | \(\frac {x A b}{2}+\frac {a B x}{2}+\frac {\sin \left (d x +c \right ) a A}{d}+\frac {3 b B \sin \left (d x +c \right )}{4 d}+\frac {B b \sin \left (3 d x +3 c \right )}{12 d}+\frac {\sin \left (2 d x +2 c \right ) A b}{4 d}+\frac {\sin \left (2 d x +2 c \right ) B a}{4 d}\) | \(85\) |
norman | \(\frac {\left (\frac {A b}{2}+\frac {B a}{2}\right ) x +\left (\frac {A b}{2}+\frac {B a}{2}\right ) x \left (\tan ^{6}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+\left (\frac {3 A b}{2}+\frac {3 B a}{2}\right ) x \left (\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+\left (\frac {3 A b}{2}+\frac {3 B a}{2}\right ) x \left (\tan ^{4}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+\frac {\left (2 a A -A b -B a +2 B b \right ) \left (\tan ^{5}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{d}+\frac {\left (2 a A +A b +B a +2 B b \right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{d}+\frac {4 \left (3 a A +B b \right ) \left (\tan ^{3}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{3 d}}{\left (1+\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )^{3}}\) | \(179\) |
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Time = 0.29 (sec) , antiderivative size = 60, normalized size of antiderivative = 0.71 \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\frac {3 \, {\left (B a + A b\right )} d x + {\left (2 \, B b \cos \left (d x + c\right )^{2} + 6 \, A a + 4 \, B b + 3 \, {\left (B a + A b\right )} \cos \left (d x + c\right )\right )} \sin \left (d x + c\right )}{6 \, d} \]
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Leaf count of result is larger than twice the leaf count of optimal. 168 vs. \(2 (76) = 152\).
Time = 0.14 (sec) , antiderivative size = 168, normalized size of antiderivative = 2.00 \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\begin {cases} \frac {A a \sin {\left (c + d x \right )}}{d} + \frac {A b x \sin ^{2}{\left (c + d x \right )}}{2} + \frac {A b x \cos ^{2}{\left (c + d x \right )}}{2} + \frac {A b \sin {\left (c + d x \right )} \cos {\left (c + d x \right )}}{2 d} + \frac {B a x \sin ^{2}{\left (c + d x \right )}}{2} + \frac {B a x \cos ^{2}{\left (c + d x \right )}}{2} + \frac {B a \sin {\left (c + d x \right )} \cos {\left (c + d x \right )}}{2 d} + \frac {2 B b \sin ^{3}{\left (c + d x \right )}}{3 d} + \frac {B b \sin {\left (c + d x \right )} \cos ^{2}{\left (c + d x \right )}}{d} & \text {for}\: d \neq 0 \\x \left (A + B \cos {\left (c \right )}\right ) \left (a + b \cos {\left (c \right )}\right ) \cos {\left (c \right )} & \text {otherwise} \end {cases} \]
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Time = 0.20 (sec) , antiderivative size = 79, normalized size of antiderivative = 0.94 \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\frac {3 \, {\left (2 \, d x + 2 \, c + \sin \left (2 \, d x + 2 \, c\right )\right )} B a + 3 \, {\left (2 \, d x + 2 \, c + \sin \left (2 \, d x + 2 \, c\right )\right )} A b - 4 \, {\left (\sin \left (d x + c\right )^{3} - 3 \, \sin \left (d x + c\right )\right )} B b + 12 \, A a \sin \left (d x + c\right )}{12 \, d} \]
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Time = 0.31 (sec) , antiderivative size = 68, normalized size of antiderivative = 0.81 \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\frac {1}{2} \, {\left (B a + A b\right )} x + \frac {B b \sin \left (3 \, d x + 3 \, c\right )}{12 \, d} + \frac {{\left (B a + A b\right )} \sin \left (2 \, d x + 2 \, c\right )}{4 \, d} + \frac {{\left (4 \, A a + 3 \, B b\right )} \sin \left (d x + c\right )}{4 \, d} \]
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Time = 0.42 (sec) , antiderivative size = 84, normalized size of antiderivative = 1.00 \[ \int \cos (c+d x) (a+b \cos (c+d x)) (A+B \cos (c+d x)) \, dx=\frac {A\,b\,x}{2}+\frac {B\,a\,x}{2}+\frac {A\,a\,\sin \left (c+d\,x\right )}{d}+\frac {3\,B\,b\,\sin \left (c+d\,x\right )}{4\,d}+\frac {A\,b\,\sin \left (2\,c+2\,d\,x\right )}{4\,d}+\frac {B\,a\,\sin \left (2\,c+2\,d\,x\right )}{4\,d}+\frac {B\,b\,\sin \left (3\,c+3\,d\,x\right )}{12\,d} \]
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