Integrand size = 21, antiderivative size = 126 \[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=\frac {20 d^4 \sqrt {\cos (a+b x)} \operatorname {EllipticF}\left (\frac {1}{2} (a+b x),2\right )}{231 b \sqrt {d \cos (a+b x)}}+\frac {20 d^3 \sqrt {d \cos (a+b x)} \sin (a+b x)}{231 b}+\frac {4 d (d \cos (a+b x))^{5/2} \sin (a+b x)}{77 b}-\frac {2 (d \cos (a+b x))^{9/2} \sin (a+b x)}{11 b d} \]
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Time = 0.07 (sec) , antiderivative size = 126, 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 = {2648, 2715, 2721, 2720} \[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=\frac {20 d^4 \sqrt {\cos (a+b x)} \operatorname {EllipticF}\left (\frac {1}{2} (a+b x),2\right )}{231 b \sqrt {d \cos (a+b x)}}+\frac {20 d^3 \sin (a+b x) \sqrt {d \cos (a+b x)}}{231 b}-\frac {2 \sin (a+b x) (d \cos (a+b x))^{9/2}}{11 b d}+\frac {4 d \sin (a+b x) (d \cos (a+b x))^{5/2}}{77 b} \]
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Rule 2648
Rule 2715
Rule 2720
Rule 2721
Rubi steps \begin{align*} \text {integral}& = -\frac {2 (d \cos (a+b x))^{9/2} \sin (a+b x)}{11 b d}+\frac {2}{11} \int (d \cos (a+b x))^{7/2} \, dx \\ & = \frac {4 d (d \cos (a+b x))^{5/2} \sin (a+b x)}{77 b}-\frac {2 (d \cos (a+b x))^{9/2} \sin (a+b x)}{11 b d}+\frac {1}{77} \left (10 d^2\right ) \int (d \cos (a+b x))^{3/2} \, dx \\ & = \frac {20 d^3 \sqrt {d \cos (a+b x)} \sin (a+b x)}{231 b}+\frac {4 d (d \cos (a+b x))^{5/2} \sin (a+b x)}{77 b}-\frac {2 (d \cos (a+b x))^{9/2} \sin (a+b x)}{11 b d}+\frac {1}{231} \left (10 d^4\right ) \int \frac {1}{\sqrt {d \cos (a+b x)}} \, dx \\ & = \frac {20 d^3 \sqrt {d \cos (a+b x)} \sin (a+b x)}{231 b}+\frac {4 d (d \cos (a+b x))^{5/2} \sin (a+b x)}{77 b}-\frac {2 (d \cos (a+b x))^{9/2} \sin (a+b x)}{11 b d}+\frac {\left (10 d^4 \sqrt {\cos (a+b x)}\right ) \int \frac {1}{\sqrt {\cos (a+b x)}} \, dx}{231 \sqrt {d \cos (a+b x)}} \\ & = \frac {20 d^4 \sqrt {\cos (a+b x)} \operatorname {EllipticF}\left (\frac {1}{2} (a+b x),2\right )}{231 b \sqrt {d \cos (a+b x)}}+\frac {20 d^3 \sqrt {d \cos (a+b x)} \sin (a+b x)}{231 b}+\frac {4 d (d \cos (a+b x))^{5/2} \sin (a+b x)}{77 b}-\frac {2 (d \cos (a+b x))^{9/2} \sin (a+b x)}{11 b d} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 0.09 (sec) , antiderivative size = 60, normalized size of antiderivative = 0.48 \[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=\frac {d^2 (d \cos (a+b x))^{3/2} \cos ^2(a+b x)^{3/4} \operatorname {Hypergeometric2F1}\left (-\frac {5}{4},\frac {3}{2},\frac {5}{2},\sin ^2(a+b x)\right ) \tan ^3(a+b x)}{3 b} \]
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Time = 1.94 (sec) , antiderivative size = 236, normalized size of antiderivative = 1.87
method | result | size |
default | \(\frac {4 \sqrt {d \left (2 \left (\cos ^{2}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )-1\right ) \left (\sin ^{2}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )}\, d^{4} \left (672 \left (\cos ^{13}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )-2352 \left (\cos ^{11}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )+3312 \left (\cos ^{9}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )-2400 \left (\cos ^{7}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )+922 \left (\cos ^{5}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )-159 \left (\cos ^{3}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )-5 \sqrt {\frac {1}{2}-\frac {\cos \left (b x +a \right )}{2}}\, \sqrt {1-2 \left (\cos ^{2}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )}\, F\left (\cos \left (\frac {b x}{2}+\frac {a}{2}\right ), \sqrt {2}\right )+5 \cos \left (\frac {b x}{2}+\frac {a}{2}\right )\right )}{231 \sqrt {-d \left (2 \left (\sin ^{4}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )-\left (\sin ^{2}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )\right )}\, \sin \left (\frac {b x}{2}+\frac {a}{2}\right ) \sqrt {d \left (2 \left (\cos ^{2}\left (\frac {b x}{2}+\frac {a}{2}\right )\right )-1\right )}\, b}\) | \(236\) |
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.13 (sec) , antiderivative size = 107, normalized size of antiderivative = 0.85 \[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=-\frac {2 \, {\left (5 i \, \sqrt {2} d^{\frac {7}{2}} {\rm weierstrassPInverse}\left (-4, 0, \cos \left (b x + a\right ) + i \, \sin \left (b x + a\right )\right ) - 5 i \, \sqrt {2} d^{\frac {7}{2}} {\rm weierstrassPInverse}\left (-4, 0, \cos \left (b x + a\right ) - i \, \sin \left (b x + a\right )\right ) + {\left (21 \, d^{3} \cos \left (b x + a\right )^{4} - 6 \, d^{3} \cos \left (b x + a\right )^{2} - 10 \, d^{3}\right )} \sqrt {d \cos \left (b x + a\right )} \sin \left (b x + a\right )\right )}}{231 \, b} \]
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Timed out. \[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=\text {Timed out} \]
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\[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=\int { \left (d \cos \left (b x + a\right )\right )^{\frac {7}{2}} \sin \left (b x + a\right )^{2} \,d x } \]
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\[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=\int { \left (d \cos \left (b x + a\right )\right )^{\frac {7}{2}} \sin \left (b x + a\right )^{2} \,d x } \]
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Timed out. \[ \int (d \cos (a+b x))^{7/2} \sin ^2(a+b x) \, dx=\int {\sin \left (a+b\,x\right )}^2\,{\left (d\,\cos \left (a+b\,x\right )\right )}^{7/2} \,d x \]
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