Integrand size = 19, antiderivative size = 48 \[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=3 a^3 x+\frac {3 a^3 \text {arctanh}(\sin (c+d x))}{d}+\frac {a^3 \sin (c+d x)}{d}+\frac {a^3 \tan (c+d x)}{d} \]
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Time = 0.07 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.263, Rules used = {3876, 2717, 3855, 3852, 8} \[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=\frac {3 a^3 \text {arctanh}(\sin (c+d x))}{d}+\frac {a^3 \sin (c+d x)}{d}+\frac {a^3 \tan (c+d x)}{d}+3 a^3 x \]
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Rule 8
Rule 2717
Rule 3852
Rule 3855
Rule 3876
Rubi steps \begin{align*} \text {integral}& = \int \left (3 a^3+a^3 \cos (c+d x)+3 a^3 \sec (c+d x)+a^3 \sec ^2(c+d x)\right ) \, dx \\ & = 3 a^3 x+a^3 \int \cos (c+d x) \, dx+a^3 \int \sec ^2(c+d x) \, dx+\left (3 a^3\right ) \int \sec (c+d x) \, dx \\ & = 3 a^3 x+\frac {3 a^3 \text {arctanh}(\sin (c+d x))}{d}+\frac {a^3 \sin (c+d x)}{d}-\frac {a^3 \text {Subst}(\int 1 \, dx,x,-\tan (c+d x))}{d} \\ & = 3 a^3 x+\frac {3 a^3 \text {arctanh}(\sin (c+d x))}{d}+\frac {a^3 \sin (c+d x)}{d}+\frac {a^3 \tan (c+d x)}{d} \\ \end{align*}
Time = 0.20 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.69 \[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=\frac {a^3 (3 d x+3 \text {arctanh}(\sin (c+d x))+\sin (c+d x)+\tan (c+d x))}{d} \]
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Time = 0.54 (sec) , antiderivative size = 55, normalized size of antiderivative = 1.15
method | result | size |
derivativedivides | \(\frac {a^{3} \tan \left (d x +c \right )+3 a^{3} \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )+3 a^{3} \left (d x +c \right )+a^{3} \sin \left (d x +c \right )}{d}\) | \(55\) |
default | \(\frac {a^{3} \tan \left (d x +c \right )+3 a^{3} \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )+3 a^{3} \left (d x +c \right )+a^{3} \sin \left (d x +c \right )}{d}\) | \(55\) |
parallelrisch | \(\frac {a^{3} \left (6 d x \cos \left (d x +c \right )-6 \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right ) \cos \left (d x +c \right )+6 \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right ) \cos \left (d x +c \right )+2 \sin \left (d x +c \right )+\sin \left (2 d x +2 c \right )\right )}{2 d \cos \left (d x +c \right )}\) | \(85\) |
risch | \(3 a^{3} x -\frac {i a^{3} {\mathrm e}^{i \left (d x +c \right )}}{2 d}+\frac {i a^{3} {\mathrm e}^{-i \left (d x +c \right )}}{2 d}+\frac {2 i a^{3}}{d \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )}-\frac {3 a^{3} \ln \left ({\mathrm e}^{i \left (d x +c \right )}-i\right )}{d}+\frac {3 a^{3} \ln \left ({\mathrm e}^{i \left (d x +c \right )}+i\right )}{d}\) | \(108\) |
norman | \(\frac {3 a^{3} x +\frac {4 a^{3} \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{d}-\frac {4 a^{3} \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{3}}{d}-3 a^{3} x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}-3 a^{3} x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{4}+3 a^{3} x \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{6}}{\left (1+\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right ) \left (-1+\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}\right )^{2}}-\frac {3 a^{3} \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right )}{d}+\frac {3 a^{3} \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right )}{d}\) | \(167\) |
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Time = 0.29 (sec) , antiderivative size = 91, normalized size of antiderivative = 1.90 \[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=\frac {6 \, a^{3} d x \cos \left (d x + c\right ) + 3 \, a^{3} \cos \left (d x + c\right ) \log \left (\sin \left (d x + c\right ) + 1\right ) - 3 \, a^{3} \cos \left (d x + c\right ) \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \, {\left (a^{3} \cos \left (d x + c\right ) + a^{3}\right )} \sin \left (d x + c\right )}{2 \, d \cos \left (d x + c\right )} \]
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\[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=a^{3} \left (\int 3 \cos {\left (c + d x \right )} \sec {\left (c + d x \right )}\, dx + \int 3 \cos {\left (c + d x \right )} \sec ^{2}{\left (c + d x \right )}\, dx + \int \cos {\left (c + d x \right )} \sec ^{3}{\left (c + d x \right )}\, dx + \int \cos {\left (c + d x \right )}\, dx\right ) \]
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Time = 0.21 (sec) , antiderivative size = 64, normalized size of antiderivative = 1.33 \[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=\frac {6 \, {\left (d x + c\right )} a^{3} + 3 \, a^{3} {\left (\log \left (\sin \left (d x + c\right ) + 1\right ) - \log \left (\sin \left (d x + c\right ) - 1\right )\right )} + 2 \, a^{3} \sin \left (d x + c\right ) + 2 \, a^{3} \tan \left (d x + c\right )}{2 \, d} \]
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Time = 0.34 (sec) , antiderivative size = 80, normalized size of antiderivative = 1.67 \[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=\frac {3 \, {\left (d x + c\right )} a^{3} + 3 \, a^{3} \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + 1 \right |}\right ) - 3 \, a^{3} \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) - 1 \right |}\right ) - \frac {4 \, a^{3} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )}{\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{4} - 1}}{d} \]
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Time = 13.23 (sec) , antiderivative size = 57, normalized size of antiderivative = 1.19 \[ \int \cos (c+d x) (a+a \sec (c+d x))^3 \, dx=3\,a^3\,x+\frac {6\,a^3\,\mathrm {atanh}\left (\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )\right )}{d}-\frac {4\,a^3\,\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}{d\,\left ({\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^4-1\right )} \]
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