Integrand size = 21, antiderivative size = 100 \[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\frac {14 \sqrt {b \cos (c+d x)} E\left (\left .\frac {1}{2} (c+d x)\right |2\right )}{15 b^3 d \sqrt {\cos (c+d x)}}+\frac {14 (b \cos (c+d x))^{3/2} \sin (c+d x)}{45 b^4 d}+\frac {2 (b \cos (c+d x))^{7/2} \sin (c+d x)}{9 b^6 d} \]
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Time = 0.12 (sec) , antiderivative size = 100, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.190, Rules used = {16, 2715, 2721, 2719} \[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\frac {2 \sin (c+d x) (b \cos (c+d x))^{7/2}}{9 b^6 d}+\frac {14 \sin (c+d x) (b \cos (c+d x))^{3/2}}{45 b^4 d}+\frac {14 E\left (\left .\frac {1}{2} (c+d x)\right |2\right ) \sqrt {b \cos (c+d x)}}{15 b^3 d \sqrt {\cos (c+d x)}} \]
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Rule 16
Rule 2715
Rule 2719
Rule 2721
Rubi steps \begin{align*} \text {integral}& = \frac {\int (b \cos (c+d x))^{9/2} \, dx}{b^7} \\ & = \frac {2 (b \cos (c+d x))^{7/2} \sin (c+d x)}{9 b^6 d}+\frac {7 \int (b \cos (c+d x))^{5/2} \, dx}{9 b^5} \\ & = \frac {14 (b \cos (c+d x))^{3/2} \sin (c+d x)}{45 b^4 d}+\frac {2 (b \cos (c+d x))^{7/2} \sin (c+d x)}{9 b^6 d}+\frac {7 \int \sqrt {b \cos (c+d x)} \, dx}{15 b^3} \\ & = \frac {14 (b \cos (c+d x))^{3/2} \sin (c+d x)}{45 b^4 d}+\frac {2 (b \cos (c+d x))^{7/2} \sin (c+d x)}{9 b^6 d}+\frac {\left (7 \sqrt {b \cos (c+d x)}\right ) \int \sqrt {\cos (c+d x)} \, dx}{15 b^3 \sqrt {\cos (c+d x)}} \\ & = \frac {14 \sqrt {b \cos (c+d x)} E\left (\left .\frac {1}{2} (c+d x)\right |2\right )}{15 b^3 d \sqrt {\cos (c+d x)}}+\frac {14 (b \cos (c+d x))^{3/2} \sin (c+d x)}{45 b^4 d}+\frac {2 (b \cos (c+d x))^{7/2} \sin (c+d x)}{9 b^6 d} \\ \end{align*}
Time = 0.52 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.74 \[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\frac {168 \sqrt {\cos (c+d x)} E\left (\left .\frac {1}{2} (c+d x)\right |2\right )+\cos (c+d x) (38 \sin (2 (c+d x))+5 \sin (4 (c+d x)))}{180 b^2 d \sqrt {b \cos (c+d x)}} \]
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Time = 4.42 (sec) , antiderivative size = 223, normalized size of antiderivative = 2.23
method | result | size |
default | \(-\frac {2 \sqrt {\left (2 \left (\cos ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-1\right ) b \left (\sin ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}\, \left (160 \left (\cos ^{11}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-480 \left (\cos ^{9}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+616 \left (\cos ^{7}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-432 \left (\cos ^{5}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+160 \left (\cos ^{3}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-21 \sqrt {\frac {1}{2}-\frac {\cos \left (d x +c \right )}{2}}\, \sqrt {-2 \left (\cos ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )+1}\, E\left (\cos \left (\frac {d x}{2}+\frac {c}{2}\right ), \sqrt {2}\right )-24 \cos \left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{45 b^{2} \sqrt {-b \left (2 \left (\sin ^{4}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-\left (\sin ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )\right )}\, \sin \left (\frac {d x}{2}+\frac {c}{2}\right ) \sqrt {\left (2 \left (\cos ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )-1\right ) b}\, d}\) | \(223\) |
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.10 (sec) , antiderivative size = 104, normalized size of antiderivative = 1.04 \[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\frac {2 \, {\left (5 \, \cos \left (d x + c\right )^{3} + 7 \, \cos \left (d x + c\right )\right )} \sqrt {b \cos \left (d x + c\right )} \sin \left (d x + c\right ) + 21 i \, \sqrt {2} \sqrt {b} {\rm weierstrassZeta}\left (-4, 0, {\rm weierstrassPInverse}\left (-4, 0, \cos \left (d x + c\right ) + i \, \sin \left (d x + c\right )\right )\right ) - 21 i \, \sqrt {2} \sqrt {b} {\rm weierstrassZeta}\left (-4, 0, {\rm weierstrassPInverse}\left (-4, 0, \cos \left (d x + c\right ) - i \, \sin \left (d x + c\right )\right )\right )}{45 \, b^{3} d} \]
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Timed out. \[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\text {Timed out} \]
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\[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\int { \frac {\cos \left (d x + c\right )^{7}}{\left (b \cos \left (d x + c\right )\right )^{\frac {5}{2}}} \,d x } \]
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\[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\int { \frac {\cos \left (d x + c\right )^{7}}{\left (b \cos \left (d x + c\right )\right )^{\frac {5}{2}}} \,d x } \]
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Timed out. \[ \int \frac {\cos ^7(c+d x)}{(b \cos (c+d x))^{5/2}} \, dx=\int \frac {{\cos \left (c+d\,x\right )}^7}{{\left (b\,\cos \left (c+d\,x\right )\right )}^{5/2}} \,d x \]
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