Integrand size = 28, antiderivative size = 92 \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=\frac {1}{2} a \left (2 a^2-b^2\right ) x+\frac {2 b \left (2 a^2-b^2\right ) \sin (c+d x)}{3 d}+\frac {a b^2 \cos (c+d x) \sin (c+d x)}{6 d}-\frac {b (a+b \cos (c+d x))^2 \sin (c+d x)}{3 d} \]
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Time = 0.13 (sec) , antiderivative size = 92, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.107, Rules used = {3095, 2832, 2813} \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=\frac {2 b \left (2 a^2-b^2\right ) \sin (c+d x)}{3 d}+\frac {1}{2} a x \left (2 a^2-b^2\right )+\frac {a b^2 \sin (c+d x) \cos (c+d x)}{6 d}-\frac {b \sin (c+d x) (a+b \cos (c+d x))^2}{3 d} \]
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Rule 2813
Rule 2832
Rule 3095
Rubi steps \begin{align*} \text {integral}& = -\int (-a+b \cos (c+d x)) (a+b \cos (c+d x))^2 \, dx \\ & = -\frac {b (a+b \cos (c+d x))^2 \sin (c+d x)}{3 d}-\frac {1}{3} \int (a+b \cos (c+d x)) \left (-3 a^2+2 b^2-a b \cos (c+d x)\right ) \, dx \\ & = \frac {1}{2} a \left (2 a^2-b^2\right ) x+\frac {2 b \left (2 a^2-b^2\right ) \sin (c+d x)}{3 d}+\frac {a b^2 \cos (c+d x) \sin (c+d x)}{6 d}-\frac {b (a+b \cos (c+d x))^2 \sin (c+d x)}{3 d} \\ \end{align*}
Time = 0.29 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.82 \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=-\frac {6 a b^2 c-12 a^3 d x+6 a b^2 d x+\left (-12 a^2 b+9 b^3\right ) \sin (c+d x)+3 a b^2 \sin (2 (c+d x))+b^3 \sin (3 (c+d x))}{12 d} \]
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Time = 3.12 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.80
method | result | size |
parallelrisch | \(\frac {12 a^{3} d x -6 a \,b^{2} d x -b^{3} \sin \left (3 d x +3 c \right )-3 a \,b^{2} \sin \left (2 d x +2 c \right )+12 \sin \left (d x +c \right ) a^{2} b -9 b^{3} \sin \left (d x +c \right )}{12 d}\) | \(74\) |
derivativedivides | \(\frac {-\frac {b^{3} \left (2+\cos ^{2}\left (d x +c \right )\right ) \sin \left (d x +c \right )}{3}-a \,b^{2} \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+\sin \left (d x +c \right ) a^{2} b +a^{3} \left (d x +c \right )}{d}\) | \(75\) |
default | \(\frac {-\frac {b^{3} \left (2+\cos ^{2}\left (d x +c \right )\right ) \sin \left (d x +c \right )}{3}-a \,b^{2} \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )+\sin \left (d x +c \right ) a^{2} b +a^{3} \left (d x +c \right )}{d}\) | \(75\) |
parts | \(a^{3} x +\frac {\sin \left (d x +c \right ) a^{2} b}{d}-\frac {b^{3} \left (2+\cos ^{2}\left (d x +c \right )\right ) \sin \left (d x +c \right )}{3 d}-\frac {a \,b^{2} \left (\frac {\cos \left (d x +c \right ) \sin \left (d x +c \right )}{2}+\frac {d x}{2}+\frac {c}{2}\right )}{d}\) | \(76\) |
risch | \(a^{3} x -\frac {a \,b^{2} x}{2}+\frac {\sin \left (d x +c \right ) a^{2} b}{d}-\frac {3 \sin \left (d x +c \right ) b^{3}}{4 d}-\frac {b^{3} \sin \left (3 d x +3 c \right )}{12 d}-\frac {a \,b^{2} \sin \left (2 d x +2 c \right )}{4 d}\) | \(77\) |
norman | \(\frac {\left (a^{3}-\frac {1}{2} a \,b^{2}\right ) x +\left (a^{3}-\frac {1}{2} a \,b^{2}\right ) x \left (\tan ^{6}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+\left (3 a^{3}-\frac {3}{2} a \,b^{2}\right ) x \left (\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+\left (3 a^{3}-\frac {3}{2} a \,b^{2}\right ) x \left (\tan ^{4}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+\frac {b \left (2 a^{2}-a b -2 b^{2}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{d}+\frac {b \left (2 a^{2}+a b -2 b^{2}\right ) \left (\tan ^{5}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{d}+\frac {4 b \left (3 a^{2}-b^{2}\right ) \left (\tan ^{3}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{3 d}}{\left (1+\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )^{3}}\) | \(190\) |
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Time = 0.28 (sec) , antiderivative size = 67, normalized size of antiderivative = 0.73 \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=\frac {3 \, {\left (2 \, a^{3} - a b^{2}\right )} d x - {\left (2 \, b^{3} \cos \left (d x + c\right )^{2} + 3 \, a b^{2} \cos \left (d x + c\right ) - 6 \, a^{2} b + 4 \, b^{3}\right )} \sin \left (d x + c\right )}{6 \, d} \]
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Time = 0.13 (sec) , antiderivative size = 131, normalized size of antiderivative = 1.42 \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=\begin {cases} a^{3} x + \frac {a^{2} b \sin {\left (c + d x \right )}}{d} - \frac {a b^{2} x \sin ^{2}{\left (c + d x \right )}}{2} - \frac {a b^{2} x \cos ^{2}{\left (c + d x \right )}}{2} - \frac {a b^{2} \sin {\left (c + d x \right )} \cos {\left (c + d x \right )}}{2 d} - \frac {2 b^{3} \sin ^{3}{\left (c + d x \right )}}{3 d} - \frac {b^{3} \sin {\left (c + d x \right )} \cos ^{2}{\left (c + d x \right )}}{d} & \text {for}\: d \neq 0 \\x \left (a + b \cos {\left (c \right )}\right ) \left (a^{2} - b^{2} \cos ^{2}{\left (c \right )}\right ) & \text {otherwise} \end {cases} \]
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Time = 0.20 (sec) , antiderivative size = 73, normalized size of antiderivative = 0.79 \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=\frac {12 \, {\left (d x + c\right )} a^{3} - 3 \, {\left (2 \, d x + 2 \, c + \sin \left (2 \, d x + 2 \, c\right )\right )} a b^{2} + 4 \, {\left (\sin \left (d x + c\right )^{3} - 3 \, \sin \left (d x + c\right )\right )} b^{3} + 12 \, a^{2} b \sin \left (d x + c\right )}{12 \, d} \]
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Time = 0.29 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.80 \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=-\frac {b^{3} \sin \left (3 \, d x + 3 \, c\right )}{12 \, d} - \frac {a b^{2} \sin \left (2 \, d x + 2 \, c\right )}{4 \, d} + \frac {1}{2} \, {\left (2 \, a^{3} - a b^{2}\right )} x + \frac {{\left (4 \, a^{2} b - 3 \, b^{3}\right )} \sin \left (d x + c\right )}{4 \, d} \]
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Time = 1.62 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.83 \[ \int (a+b \cos (c+d x)) \left (a^2-b^2 \cos ^2(c+d x)\right ) \, dx=a^3\,x-\frac {3\,b^3\,\sin \left (c+d\,x\right )}{4\,d}-\frac {b^3\,\sin \left (3\,c+3\,d\,x\right )}{12\,d}-\frac {a\,b^2\,x}{2}-\frac {a\,b^2\,\sin \left (2\,c+2\,d\,x\right )}{4\,d}+\frac {a^2\,b\,\sin \left (c+d\,x\right )}{d} \]
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