Integrand size = 22, antiderivative size = 69 \[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=\frac {\operatorname {EllipticF}\left (a-\frac {\pi }{4}+b x,2\right )}{6 b}-\frac {\cos (2 a+2 b x) \sqrt {\sin (2 a+2 b x)}}{6 b}-\frac {\sin ^{\frac {5}{2}}(2 a+2 b x)}{10 b} \]
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Time = 0.06 (sec) , antiderivative size = 69, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.136, Rules used = {4383, 2715, 2720} \[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=-\frac {\sin ^{\frac {5}{2}}(2 a+2 b x)}{10 b}+\frac {\operatorname {EllipticF}\left (a+b x-\frac {\pi }{4},2\right )}{6 b}-\frac {\sqrt {\sin (2 a+2 b x)} \cos (2 a+2 b x)}{6 b} \]
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Rule 2715
Rule 2720
Rule 4383
Rubi steps \begin{align*} \text {integral}& = -\frac {\sin ^{\frac {5}{2}}(2 a+2 b x)}{10 b}+\frac {1}{2} \int \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx \\ & = -\frac {\cos (2 a+2 b x) \sqrt {\sin (2 a+2 b x)}}{6 b}-\frac {\sin ^{\frac {5}{2}}(2 a+2 b x)}{10 b}+\frac {1}{6} \int \frac {1}{\sqrt {\sin (2 a+2 b x)}} \, dx \\ & = \frac {\operatorname {EllipticF}\left (a-\frac {\pi }{4}+b x,2\right )}{6 b}-\frac {\cos (2 a+2 b x) \sqrt {\sin (2 a+2 b x)}}{6 b}-\frac {\sin ^{\frac {5}{2}}(2 a+2 b x)}{10 b} \\ \end{align*}
Time = 0.46 (sec) , antiderivative size = 76, normalized size of antiderivative = 1.10 \[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=\frac {20 \operatorname {EllipticF}\left (a-\frac {\pi }{4}+b x,2\right ) \sqrt {\sin (2 (a+b x))}-9 \sin (2 (a+b x))-10 \sin (4 (a+b x))+3 \sin (6 (a+b x))}{120 b \sqrt {\sin (2 (a+b x))}} \]
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result has leaf size over 500,000. Avoiding possible recursion issues.
Time = 65.32 (sec) , antiderivative size = 185748620, normalized size of antiderivative = 2692008.99
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\[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=\int { \sin \left (2 \, b x + 2 \, a\right )^{\frac {3}{2}} \sin \left (b x + a\right )^{2} \,d x } \]
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Timed out. \[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=\text {Timed out} \]
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\[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=\int { \sin \left (2 \, b x + 2 \, a\right )^{\frac {3}{2}} \sin \left (b x + a\right )^{2} \,d x } \]
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\[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=\int { \sin \left (2 \, b x + 2 \, a\right )^{\frac {3}{2}} \sin \left (b x + a\right )^{2} \,d x } \]
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Timed out. \[ \int \sin ^2(a+b x) \sin ^{\frac {3}{2}}(2 a+2 b x) \, dx=\int {\sin \left (a+b\,x\right )}^2\,{\sin \left (2\,a+2\,b\,x\right )}^{3/2} \,d x \]
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