Integrand size = 25, antiderivative size = 79 \[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\frac {2 \sqrt [6]{2} \operatorname {AppellF1}\left (\frac {1}{2},-\frac {5}{3},-\frac {1}{6},\frac {3}{2},1-\cos (c+d x),\frac {1}{2} (1-\cos (c+d x))\right ) (a+a \cos (c+d x))^{2/3} \sin (c+d x)}{d (1+\cos (c+d x))^{7/6}} \]
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Time = 0.15 (sec) , antiderivative size = 79, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.120, Rules used = {2866, 2864, 138} \[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\frac {2 \sqrt [6]{2} \sin (c+d x) (a \cos (c+d x)+a)^{2/3} \operatorname {AppellF1}\left (\frac {1}{2},-\frac {5}{3},-\frac {1}{6},\frac {3}{2},1-\cos (c+d x),\frac {1}{2} (1-\cos (c+d x))\right )}{d (\cos (c+d x)+1)^{7/6}} \]
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Rule 138
Rule 2864
Rule 2866
Rubi steps \begin{align*} \text {integral}& = \frac {(a+a \cos (c+d x))^{2/3} \int \cos ^{\frac {5}{3}}(c+d x) (1+\cos (c+d x))^{2/3} \, dx}{(1+\cos (c+d x))^{2/3}} \\ & = \frac {\left ((a+a \cos (c+d x))^{2/3} \sin (c+d x)\right ) \text {Subst}\left (\int \frac {(1-x)^{5/3} \sqrt [6]{2-x}}{\sqrt {x}} \, dx,x,1-\cos (c+d x)\right )}{d \sqrt {1-\cos (c+d x)} (1+\cos (c+d x))^{7/6}} \\ & = \frac {2 \sqrt [6]{2} \operatorname {AppellF1}\left (\frac {1}{2},-\frac {5}{3},-\frac {1}{6},\frac {3}{2},1-\cos (c+d x),\frac {1}{2} (1-\cos (c+d x))\right ) (a+a \cos (c+d x))^{2/3} \sin (c+d x)}{d (1+\cos (c+d x))^{7/6}} \\ \end{align*}
\[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx \]
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\[\int \left (\cos ^{\frac {5}{3}}\left (d x +c \right )\right ) \left (a +\cos \left (d x +c \right ) a \right )^{\frac {2}{3}}d x\]
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\[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\int { {\left (a \cos \left (d x + c\right ) + a\right )}^{\frac {2}{3}} \cos \left (d x + c\right )^{\frac {5}{3}} \,d x } \]
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Timed out. \[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\text {Timed out} \]
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\[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\int { {\left (a \cos \left (d x + c\right ) + a\right )}^{\frac {2}{3}} \cos \left (d x + c\right )^{\frac {5}{3}} \,d x } \]
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\[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\int { {\left (a \cos \left (d x + c\right ) + a\right )}^{\frac {2}{3}} \cos \left (d x + c\right )^{\frac {5}{3}} \,d x } \]
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Timed out. \[ \int \cos ^{\frac {5}{3}}(c+d x) (a+a \cos (c+d x))^{2/3} \, dx=\int {\cos \left (c+d\,x\right )}^{5/3}\,{\left (a+a\,\cos \left (c+d\,x\right )\right )}^{2/3} \,d x \]
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