Integrand size = 21, antiderivative size = 24 \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\frac {2 (a+a \sin (c+d x))^{9/2}}{9 a d} \]
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Time = 0.03 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.095, Rules used = {2746, 32} \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\frac {2 (a \sin (c+d x)+a)^{9/2}}{9 a d} \]
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Rule 32
Rule 2746
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int (a+x)^{7/2} \, dx,x,a \sin (c+d x)\right )}{a d} \\ & = \frac {2 (a+a \sin (c+d x))^{9/2}}{9 a d} \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.00 \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\frac {2 (a+a \sin (c+d x))^{9/2}}{9 a d} \]
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Time = 0.46 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.88
method | result | size |
derivativedivides | \(\frac {2 \left (a +a \sin \left (d x +c \right )\right )^{\frac {9}{2}}}{9 a d}\) | \(21\) |
default | \(\frac {2 \left (a +a \sin \left (d x +c \right )\right )^{\frac {9}{2}}}{9 a d}\) | \(21\) |
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Leaf count of result is larger than twice the leaf count of optimal. 74 vs. \(2 (20) = 40\).
Time = 0.26 (sec) , antiderivative size = 74, normalized size of antiderivative = 3.08 \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\frac {2 \, {\left (a^{3} \cos \left (d x + c\right )^{4} - 8 \, a^{3} \cos \left (d x + c\right )^{2} + 8 \, a^{3} - 4 \, {\left (a^{3} \cos \left (d x + c\right )^{2} - 2 \, a^{3}\right )} \sin \left (d x + c\right )\right )} \sqrt {a \sin \left (d x + c\right ) + a}}{9 \, d} \]
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Leaf count of result is larger than twice the leaf count of optimal. 156 vs. \(2 (19) = 38\).
Time = 130.57 (sec) , antiderivative size = 156, normalized size of antiderivative = 6.50 \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\begin {cases} \frac {2 a^{3} \sqrt {a \sin {\left (c + d x \right )} + a} \sin ^{4}{\left (c + d x \right )}}{9 d} + \frac {8 a^{3} \sqrt {a \sin {\left (c + d x \right )} + a} \sin ^{3}{\left (c + d x \right )}}{9 d} + \frac {4 a^{3} \sqrt {a \sin {\left (c + d x \right )} + a} \sin ^{2}{\left (c + d x \right )}}{3 d} + \frac {8 a^{3} \sqrt {a \sin {\left (c + d x \right )} + a} \sin {\left (c + d x \right )}}{9 d} + \frac {2 a^{3} \sqrt {a \sin {\left (c + d x \right )} + a}}{9 d} & \text {for}\: d \neq 0 \\x \left (a \sin {\left (c \right )} + a\right )^{\frac {7}{2}} \cos {\left (c \right )} & \text {otherwise} \end {cases} \]
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none
Time = 0.18 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.83 \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\frac {2 \, {\left (a \sin \left (d x + c\right ) + a\right )}^{\frac {9}{2}}}{9 \, a d} \]
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none
Time = 0.31 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.58 \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\frac {32 \, \sqrt {2} a^{\frac {7}{2}} \cos \left (-\frac {1}{4} \, \pi + \frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{9} \mathrm {sgn}\left (\cos \left (-\frac {1}{4} \, \pi + \frac {1}{2} \, d x + \frac {1}{2} \, c\right )\right )}{9 \, d} \]
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Time = 4.46 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.83 \[ \int \cos (c+d x) (a+a \sin (c+d x))^{7/2} \, dx=\frac {2\,{\left (a\,\left (\sin \left (c+d\,x\right )+1\right )\right )}^{9/2}}{9\,a\,d} \]
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