Integrand size = 12, antiderivative size = 73 \[ \int (a+a \cos (c+d x))^n \, dx=\frac {2^{\frac {1}{2}+n} (1+\cos (c+d x))^{-\frac {1}{2}-n} (a+a \cos (c+d x))^n \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {1}{2}-n,\frac {3}{2},\frac {1}{2} (1-\cos (c+d x))\right ) \sin (c+d x)}{d} \]
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Time = 0.04 (sec) , antiderivative size = 73, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {2731, 2730} \[ \int (a+a \cos (c+d x))^n \, dx=\frac {2^{n+\frac {1}{2}} \sin (c+d x) (\cos (c+d x)+1)^{-n-\frac {1}{2}} (a \cos (c+d x)+a)^n \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {1}{2}-n,\frac {3}{2},\frac {1}{2} (1-\cos (c+d x))\right )}{d} \]
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Rule 2730
Rule 2731
Rubi steps \begin{align*} \text {integral}& = \left ((1+\cos (c+d x))^{-n} (a+a \cos (c+d x))^n\right ) \int (1+\cos (c+d x))^n \, dx \\ & = \frac {2^{\frac {1}{2}+n} (1+\cos (c+d x))^{-\frac {1}{2}-n} (a+a \cos (c+d x))^n \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {1}{2}-n,\frac {3}{2},\frac {1}{2} (1-\cos (c+d x))\right ) \sin (c+d x)}{d} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 74, normalized size of antiderivative = 1.01 \[ \int (a+a \cos (c+d x))^n \, dx=-\frac {2 (a (1+\cos (c+d x)))^n \cot \left (\frac {1}{2} (c+d x)\right ) \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {1}{2}+n,\frac {3}{2}+n,\cos ^2\left (\frac {1}{2} (c+d x)\right )\right ) \sqrt {\sin ^2\left (\frac {1}{2} (c+d x)\right )}}{d+2 d n} \]
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\[\int \left (a +\cos \left (d x +c \right ) a \right )^{n}d x\]
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\[ \int (a+a \cos (c+d x))^n \, dx=\int { {\left (a \cos \left (d x + c\right ) + a\right )}^{n} \,d x } \]
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\[ \int (a+a \cos (c+d x))^n \, dx=\int \left (a \cos {\left (c + d x \right )} + a\right )^{n}\, dx \]
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\[ \int (a+a \cos (c+d x))^n \, dx=\int { {\left (a \cos \left (d x + c\right ) + a\right )}^{n} \,d x } \]
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\[ \int (a+a \cos (c+d x))^n \, dx=\int { {\left (a \cos \left (d x + c\right ) + a\right )}^{n} \,d x } \]
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Timed out. \[ \int (a+a \cos (c+d x))^n \, dx=\int {\left (a+a\,\cos \left (c+d\,x\right )\right )}^n \,d x \]
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