Integrand size = 19, antiderivative size = 98 \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=-\frac {b \cos (c+d x)-a \sin (c+d x)}{3 \left (a^2+b^2\right ) d (a \cos (c+d x)+b \sin (c+d x))^3}+\frac {2 \sin (c+d x)}{3 a \left (a^2+b^2\right ) d (a \cos (c+d x)+b \sin (c+d x))} \]
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Time = 0.05 (sec) , antiderivative size = 98, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.105, Rules used = {3155, 3154} \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=\frac {2 \sin (c+d x)}{3 a d \left (a^2+b^2\right ) (a \cos (c+d x)+b \sin (c+d x))}-\frac {b \cos (c+d x)-a \sin (c+d x)}{3 d \left (a^2+b^2\right ) (a \cos (c+d x)+b \sin (c+d x))^3} \]
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Rule 3154
Rule 3155
Rubi steps \begin{align*} \text {integral}& = -\frac {b \cos (c+d x)-a \sin (c+d x)}{3 \left (a^2+b^2\right ) d (a \cos (c+d x)+b \sin (c+d x))^3}+\frac {2 \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^2} \, dx}{3 \left (a^2+b^2\right )} \\ & = -\frac {b \cos (c+d x)-a \sin (c+d x)}{3 \left (a^2+b^2\right ) d (a \cos (c+d x)+b \sin (c+d x))^3}+\frac {2 \sin (c+d x)}{3 a \left (a^2+b^2\right ) d (a \cos (c+d x)+b \sin (c+d x))} \\ \end{align*}
Time = 0.20 (sec) , antiderivative size = 85, normalized size of antiderivative = 0.87 \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=\frac {-a b \cos (3 (c+d x))+\left (2 a^2+b^2+\left (a^2-b^2\right ) \cos (2 (c+d x))\right ) \sin (c+d x)}{3 a \left (a^2+b^2\right ) d (a \cos (c+d x)+b \sin (c+d x))^3} \]
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Time = 1.07 (sec) , antiderivative size = 64, normalized size of antiderivative = 0.65
method | result | size |
derivativedivides | \(\frac {-\frac {a^{2}+b^{2}}{3 b^{3} \left (a +b \tan \left (d x +c \right )\right )^{3}}+\frac {a}{b^{3} \left (a +b \tan \left (d x +c \right )\right )^{2}}-\frac {1}{b^{3} \left (a +b \tan \left (d x +c \right )\right )}}{d}\) | \(64\) |
default | \(\frac {-\frac {a^{2}+b^{2}}{3 b^{3} \left (a +b \tan \left (d x +c \right )\right )^{3}}+\frac {a}{b^{3} \left (a +b \tan \left (d x +c \right )\right )^{2}}-\frac {1}{b^{3} \left (a +b \tan \left (d x +c \right )\right )}}{d}\) | \(64\) |
risch | \(\frac {4 i \left (3 i a \,{\mathrm e}^{2 i \left (d x +c \right )}+3 b \,{\mathrm e}^{2 i \left (d x +c \right )}+i a -b \right )}{3 \left (b \,{\mathrm e}^{2 i \left (d x +c \right )}+i a \,{\mathrm e}^{2 i \left (d x +c \right )}-b +i a \right )^{3} d \left (i a +b \right )^{2}}\) | \(82\) |
norman | \(\frac {\frac {1}{3 b d}-\frac {\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{6}}{3 b d}-\frac {8 \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{3}}{3 a d}-\frac {\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}}{b d}+\frac {\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{4}}{d b}}{\left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2} a -2 b \tan \left (\frac {d x}{2}+\frac {c}{2}\right )-a \right )^{3}}\) | \(117\) |
parallelrisch | \(-\frac {2 \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{4} a^{2}-2 \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{3} a b +\frac {2 \left (-a^{2}+2 b^{2}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}}{3}+2 \tan \left (\frac {d x}{2}+\frac {c}{2}\right ) a b +a^{2}\right ) \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{d \,a^{3} \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )^{2} a -2 b \tan \left (\frac {d x}{2}+\frac {c}{2}\right )-a \right )^{3}}\) | \(120\) |
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Leaf count of result is larger than twice the leaf count of optimal. 217 vs. \(2 (94) = 188\).
Time = 0.26 (sec) , antiderivative size = 217, normalized size of antiderivative = 2.21 \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=-\frac {2 \, {\left (3 \, a^{2} b - b^{3}\right )} \cos \left (d x + c\right )^{3} - 3 \, {\left (a^{2} b - b^{3}\right )} \cos \left (d x + c\right ) - {\left (a^{3} + 3 \, a b^{2} + 2 \, {\left (a^{3} - 3 \, a b^{2}\right )} \cos \left (d x + c\right )^{2}\right )} \sin \left (d x + c\right )}{3 \, {\left ({\left (a^{7} - a^{5} b^{2} - 5 \, a^{3} b^{4} - 3 \, a b^{6}\right )} d \cos \left (d x + c\right )^{3} + 3 \, {\left (a^{5} b^{2} + 2 \, a^{3} b^{4} + a b^{6}\right )} d \cos \left (d x + c\right ) + {\left ({\left (3 \, a^{6} b + 5 \, a^{4} b^{3} + a^{2} b^{5} - b^{7}\right )} d \cos \left (d x + c\right )^{2} + {\left (a^{4} b^{3} + 2 \, a^{2} b^{5} + b^{7}\right )} d\right )} \sin \left (d x + c\right )\right )}} \]
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Timed out. \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=\text {Timed out} \]
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Time = 0.22 (sec) , antiderivative size = 85, normalized size of antiderivative = 0.87 \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=-\frac {3 \, b^{2} \tan \left (d x + c\right )^{2} + 3 \, a b \tan \left (d x + c\right ) + a^{2} + b^{2}}{3 \, {\left (b^{6} \tan \left (d x + c\right )^{3} + 3 \, a b^{5} \tan \left (d x + c\right )^{2} + 3 \, a^{2} b^{4} \tan \left (d x + c\right ) + a^{3} b^{3}\right )} d} \]
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Time = 0.29 (sec) , antiderivative size = 50, normalized size of antiderivative = 0.51 \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=-\frac {3 \, b^{2} \tan \left (d x + c\right )^{2} + 3 \, a b \tan \left (d x + c\right ) + a^{2} + b^{2}}{3 \, {\left (b \tan \left (d x + c\right ) + a\right )}^{3} b^{3} d} \]
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Time = 27.89 (sec) , antiderivative size = 222, normalized size of antiderivative = 2.27 \[ \int \frac {1}{(a \cos (c+d x)+b \sin (c+d x))^4} \, dx=\frac {\frac {2\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^5}{a}+\frac {2\,\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}{a}-\frac {4\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^3\,\left (a^2-2\,b^2\right )}{3\,a^3}+\frac {4\,b\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^2}{a^2}-\frac {4\,b\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^4}{a^2}}{d\,\left ({\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^2\,\left (12\,a\,b^2-3\,a^3\right )-a^3\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^6-{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^4\,\left (12\,a\,b^2-3\,a^3\right )-{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^3\,\left (12\,a^2\,b-8\,b^3\right )+a^3+6\,a^2\,b\,\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )+6\,a^2\,b\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^5\right )} \]
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