Integrand size = 21, antiderivative size = 156 \[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=\frac {\cos (c+d x) (a+a \sin (c+d x))^n}{d \left (2+3 n+n^2\right )}-\frac {2^{\frac {1}{2}+n} \left (1+n+n^2\right ) \cos (c+d x) \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {1}{2}-n,\frac {3}{2},\frac {1}{2} (1-\sin (c+d x))\right ) (1+\sin (c+d x))^{-\frac {1}{2}-n} (a+a \sin (c+d x))^n}{d (1+n) (2+n)}-\frac {\cos (c+d x) (a+a \sin (c+d x))^{1+n}}{a d (2+n)} \]
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Time = 0.10 (sec) , antiderivative size = 156, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.190, Rules used = {2838, 2830, 2731, 2730} \[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=-\frac {2^{n+\frac {1}{2}} \left (n^2+n+1\right ) \cos (c+d x) (\sin (c+d x)+1)^{-n-\frac {1}{2}} (a \sin (c+d x)+a)^n \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {1}{2}-n,\frac {3}{2},\frac {1}{2} (1-\sin (c+d x))\right )}{d (n+1) (n+2)}+\frac {\cos (c+d x) (a \sin (c+d x)+a)^n}{d \left (n^2+3 n+2\right )}-\frac {\cos (c+d x) (a \sin (c+d x)+a)^{n+1}}{a d (n+2)} \]
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Rule 2730
Rule 2731
Rule 2830
Rule 2838
Rubi steps \begin{align*} \text {integral}& = -\frac {\cos (c+d x) (a+a \sin (c+d x))^{1+n}}{a d (2+n)}+\frac {\int (a (1+n)-a \sin (c+d x)) (a+a \sin (c+d x))^n \, dx}{a (2+n)} \\ & = \frac {\cos (c+d x) (a+a \sin (c+d x))^n}{d \left (2+3 n+n^2\right )}-\frac {\cos (c+d x) (a+a \sin (c+d x))^{1+n}}{a d (2+n)}+\frac {\left (1+n+n^2\right ) \int (a+a \sin (c+d x))^n \, dx}{(1+n) (2+n)} \\ & = \frac {\cos (c+d x) (a+a \sin (c+d x))^n}{d \left (2+3 n+n^2\right )}-\frac {\cos (c+d x) (a+a \sin (c+d x))^{1+n}}{a d (2+n)}+\frac {\left (\left (1+n+n^2\right ) (1+\sin (c+d x))^{-n} (a+a \sin (c+d x))^n\right ) \int (1+\sin (c+d x))^n \, dx}{(1+n) (2+n)} \\ & = \frac {\cos (c+d x) (a+a \sin (c+d x))^n}{d \left (2+3 n+n^2\right )}-\frac {2^{\frac {1}{2}+n} \left (1+n+n^2\right ) \cos (c+d x) \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {1}{2}-n,\frac {3}{2},\frac {1}{2} (1-\sin (c+d x))\right ) (1+\sin (c+d x))^{-\frac {1}{2}-n} (a+a \sin (c+d x))^n}{d (1+n) (2+n)}-\frac {\cos (c+d x) (a+a \sin (c+d x))^{1+n}}{a d (2+n)} \\ \end{align*}
Leaf count is larger than twice the leaf count of optimal. \(1732\) vs. \(2(156)=312\).
Time = 21.41 (sec) , antiderivative size = 1732, normalized size of antiderivative = 11.10 \[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=-\frac {2 \sin ^2(c+d x) (a+a \sin (c+d x))^n \left (a+\frac {a \tan (c+d x)}{\sqrt {\sec ^2(c+d x)}}\right )^n \left (\sec ^2(c+d x)+\sqrt {\sec ^2(c+d x)} \tan (c+d x)\right ) \left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^n \left (-\left ((3+2 n) \operatorname {Hypergeometric2F1}\left (\frac {1}{2}+n,1+n,\frac {3}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )\right )+4 (1+2 n) \operatorname {Hypergeometric2F1}\left (\frac {3}{2}+n,3+n,\frac {5}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right ) \left (1+2 \sqrt {\sec ^2(c+d x)} \tan (c+d x)+2 \tan ^2(c+d x)\right )\right )}{d \left (3+8 n+4 n^2\right ) \sqrt {\sec ^2(c+d x)} \left (-\frac {4 n \left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right ) \left (a+\frac {a \tan (c+d x)}{\sqrt {\sec ^2(c+d x)}}\right )^n \left (\sec ^2(c+d x)+\sqrt {\sec ^2(c+d x)} \tan (c+d x)\right )^2 \left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^{-1+n} \left (-\left ((3+2 n) \operatorname {Hypergeometric2F1}\left (\frac {1}{2}+n,1+n,\frac {3}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )\right )+4 (1+2 n) \operatorname {Hypergeometric2F1}\left (\frac {3}{2}+n,3+n,\frac {5}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right ) \left (1+2 \sqrt {\sec ^2(c+d x)} \tan (c+d x)+2 \tan ^2(c+d x)\right )\right )}{\left (3+8 n+4 n^2\right ) \sqrt {\sec ^2(c+d x)}}+\frac {2 \tan (c+d x) \left (a+\frac {a \tan (c+d x)}{\sqrt {\sec ^2(c+d x)}}\right )^n \left (\sec ^2(c+d x)+\sqrt {\sec ^2(c+d x)} \tan (c+d x)\right ) \left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^n \left (-\left ((3+2 n) \operatorname {Hypergeometric2F1}\left (\frac {1}{2}+n,1+n,\frac {3}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )\right )+4 (1+2 n) \operatorname {Hypergeometric2F1}\left (\frac {3}{2}+n,3+n,\frac {5}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right ) \left (1+2 \sqrt {\sec ^2(c+d x)} \tan (c+d x)+2 \tan ^2(c+d x)\right )\right )}{\left (3+8 n+4 n^2\right ) \sqrt {\sec ^2(c+d x)}}-\frac {2 n \left (a+\frac {a \tan (c+d x)}{\sqrt {\sec ^2(c+d x)}}\right )^{-1+n} \left (\sec ^2(c+d x)+\sqrt {\sec ^2(c+d x)} \tan (c+d x)\right ) \left (a \sqrt {\sec ^2(c+d x)}-\frac {a \tan ^2(c+d x)}{\sqrt {\sec ^2(c+d x)}}\right ) \left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^n \left (-\left ((3+2 n) \operatorname {Hypergeometric2F1}\left (\frac {1}{2}+n,1+n,\frac {3}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )\right )+4 (1+2 n) \operatorname {Hypergeometric2F1}\left (\frac {3}{2}+n,3+n,\frac {5}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right ) \left (1+2 \sqrt {\sec ^2(c+d x)} \tan (c+d x)+2 \tan ^2(c+d x)\right )\right )}{\left (3+8 n+4 n^2\right ) \sqrt {\sec ^2(c+d x)}}-\frac {2 \left (a+\frac {a \tan (c+d x)}{\sqrt {\sec ^2(c+d x)}}\right )^n \left (\sec ^2(c+d x)^{3/2}+2 \sec ^2(c+d x) \tan (c+d x)+\sqrt {\sec ^2(c+d x)} \tan ^2(c+d x)\right ) \left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^n \left (-\left ((3+2 n) \operatorname {Hypergeometric2F1}\left (\frac {1}{2}+n,1+n,\frac {3}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )\right )+4 (1+2 n) \operatorname {Hypergeometric2F1}\left (\frac {3}{2}+n,3+n,\frac {5}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right ) \left (1+2 \sqrt {\sec ^2(c+d x)} \tan (c+d x)+2 \tan ^2(c+d x)\right )\right )}{\left (3+8 n+4 n^2\right ) \sqrt {\sec ^2(c+d x)}}-\frac {2 \left (a+\frac {a \tan (c+d x)}{\sqrt {\sec ^2(c+d x)}}\right )^n \left (\sec ^2(c+d x)+\sqrt {\sec ^2(c+d x)} \tan (c+d x)\right ) \left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^n \left (4 (1+2 n) \operatorname {Hypergeometric2F1}\left (\frac {3}{2}+n,3+n,\frac {5}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right ) \left (2 \sec ^2(c+d x)^{3/2}+4 \sec ^2(c+d x) \tan (c+d x)+2 \sqrt {\sec ^2(c+d x)} \tan ^2(c+d x)\right )+\frac {8 \left (\frac {3}{2}+n\right ) (1+2 n) \left (\sec ^2(c+d x)+\sqrt {\sec ^2(c+d x)} \tan (c+d x)\right ) \left (1+2 \sqrt {\sec ^2(c+d x)} \tan (c+d x)+2 \tan ^2(c+d x)\right ) \left (-\operatorname {Hypergeometric2F1}\left (\frac {3}{2}+n,3+n,\frac {5}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )+\left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^{-3-n}\right )}{\sqrt {\sec ^2(c+d x)}+\tan (c+d x)}-\frac {2 \left (\frac {1}{2}+n\right ) (3+2 n) \left (\sec ^2(c+d x)+\sqrt {\sec ^2(c+d x)} \tan (c+d x)\right ) \left (-\operatorname {Hypergeometric2F1}\left (\frac {1}{2}+n,1+n,\frac {3}{2}+n,-\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )+\left (1+\left (\sqrt {\sec ^2(c+d x)}+\tan (c+d x)\right )^2\right )^{-1-n}\right )}{\sqrt {\sec ^2(c+d x)}+\tan (c+d x)}\right )}{\left (3+8 n+4 n^2\right ) \sqrt {\sec ^2(c+d x)}}\right )} \]
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\[\int \left (\sin ^{2}\left (d x +c \right )\right ) \left (a +a \sin \left (d x +c \right )\right )^{n}d x\]
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\[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=\int { {\left (a \sin \left (d x + c\right ) + a\right )}^{n} \sin \left (d x + c\right )^{2} \,d x } \]
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\[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=\int \left (a \left (\sin {\left (c + d x \right )} + 1\right )\right )^{n} \sin ^{2}{\left (c + d x \right )}\, dx \]
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\[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=\int { {\left (a \sin \left (d x + c\right ) + a\right )}^{n} \sin \left (d x + c\right )^{2} \,d x } \]
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\[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=\int { {\left (a \sin \left (d x + c\right ) + a\right )}^{n} \sin \left (d x + c\right )^{2} \,d x } \]
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Timed out. \[ \int \sin ^2(c+d x) (a+a \sin (c+d x))^n \, dx=\int {\sin \left (c+d\,x\right )}^2\,{\left (a+a\,\sin \left (c+d\,x\right )\right )}^n \,d x \]
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