Integrand size = 27, antiderivative size = 35 \[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=(A b+a B) x+\frac {b B \text {arctanh}(\sin (c+d x))}{d}+\frac {a A \sin (c+d x)}{d} \]
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Time = 0.06 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.074, Rules used = {4081, 3855} \[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=x (a B+A b)+\frac {a A \sin (c+d x)}{d}+\frac {b B \text {arctanh}(\sin (c+d x))}{d} \]
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Rule 3855
Rule 4081
Rubi steps \begin{align*} \text {integral}& = \frac {a A \sin (c+d x)}{d}-\int (-A b-a B-b B \sec (c+d x)) \, dx \\ & = (A b+a B) x+\frac {a A \sin (c+d x)}{d}+(b B) \int \sec (c+d x) \, dx \\ & = (A b+a B) x+\frac {b B \text {arctanh}(\sin (c+d x))}{d}+\frac {a A \sin (c+d x)}{d} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.31 \[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=A b x+a B x+\frac {b B \text {arctanh}(\sin (c+d x))}{d}+\frac {a A \cos (d x) \sin (c)}{d}+\frac {a A \cos (c) \sin (d x)}{d} \]
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Time = 0.67 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.37
method | result | size |
derivativedivides | \(\frac {a A \sin \left (d x +c \right )+B a \left (d x +c \right )+A b \left (d x +c \right )+B b \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )}{d}\) | \(48\) |
default | \(\frac {a A \sin \left (d x +c \right )+B a \left (d x +c \right )+A b \left (d x +c \right )+B b \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )}{d}\) | \(48\) |
parallelrisch | \(\frac {-B \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right ) b +B \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right ) b +a A \sin \left (d x +c \right )+\left (A b +B a \right ) x d}{d}\) | \(56\) |
risch | \(A b x +B a x -\frac {i a A \,{\mathrm e}^{i \left (d x +c \right )}}{2 d}+\frac {i a A \,{\mathrm e}^{-i \left (d x +c \right )}}{2 d}+\frac {\ln \left ({\mathrm e}^{i \left (d x +c \right )}+i\right ) B b}{d}-\frac {\ln \left ({\mathrm e}^{i \left (d x +c \right )}-i\right ) B b}{d}\) | \(83\) |
norman | \(\frac {\left (-A b -B a \right ) x +\left (A b +B a \right ) x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{4}-\frac {2 a A \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{d}+\frac {2 a A \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{3}}{d}}{\left (1+\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right ) \left (-1+\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right )}+\frac {B b \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right )}{d}-\frac {B b \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right )}{d}\) | \(136\) |
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Time = 0.28 (sec) , antiderivative size = 54, normalized size of antiderivative = 1.54 \[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=\frac {2 \, {\left (B a + A b\right )} d x + B b \log \left (\sin \left (d x + c\right ) + 1\right ) - B b \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \, A a \sin \left (d x + c\right )}{2 \, d} \]
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\[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=\int \left (A + B \sec {\left (c + d x \right )}\right ) \left (a + b \sec {\left (c + d x \right )}\right ) \cos {\left (c + d x \right )}\, dx \]
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Time = 0.20 (sec) , antiderivative size = 58, normalized size of antiderivative = 1.66 \[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=\frac {2 \, {\left (d x + c\right )} B a + 2 \, {\left (d x + c\right )} A b + B b {\left (\log \left (\sin \left (d x + c\right ) + 1\right ) - \log \left (\sin \left (d x + c\right ) - 1\right )\right )} + 2 \, A a \sin \left (d x + c\right )}{2 \, d} \]
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Leaf count of result is larger than twice the leaf count of optimal. 79 vs. \(2 (35) = 70\).
Time = 0.29 (sec) , antiderivative size = 79, normalized size of antiderivative = 2.26 \[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=\frac {B b \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + 1 \right |}\right ) - B b \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) - 1 \right |}\right ) + {\left (B a + A b\right )} {\left (d x + c\right )} + \frac {2 \, A a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )}{\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + 1}}{d} \]
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Time = 14.32 (sec) , antiderivative size = 100, normalized size of antiderivative = 2.86 \[ \int \cos (c+d x) (a+b \sec (c+d x)) (A+B \sec (c+d x)) \, dx=\frac {A\,a\,\sin \left (c+d\,x\right )}{d}+\frac {2\,A\,b\,\mathrm {atan}\left (\frac {\sin \left (\frac {c}{2}+\frac {d\,x}{2}\right )}{\cos \left (\frac {c}{2}+\frac {d\,x}{2}\right )}\right )}{d}+\frac {2\,B\,a\,\mathrm {atan}\left (\frac {\sin \left (\frac {c}{2}+\frac {d\,x}{2}\right )}{\cos \left (\frac {c}{2}+\frac {d\,x}{2}\right )}\right )}{d}+\frac {2\,B\,b\,\mathrm {atanh}\left (\frac {\sin \left (\frac {c}{2}+\frac {d\,x}{2}\right )}{\cos \left (\frac {c}{2}+\frac {d\,x}{2}\right )}\right )}{d} \]
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