Integrand size = 19, antiderivative size = 73 \[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=-\frac {b \operatorname {Hypergeometric2F1}\left (-\frac {3}{2},\frac {1-n}{2},\frac {3-n}{2},\cos ^2(e+f x)\right ) (b \sec (e+f x))^{-1+n} \sin (e+f x)}{f (1-n) \sqrt {\sin ^2(e+f x)}} \]
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Time = 0.05 (sec) , antiderivative size = 73, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.105, Rules used = {2712, 2656} \[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=-\frac {b \sin (e+f x) (b \sec (e+f x))^{n-1} \operatorname {Hypergeometric2F1}\left (-\frac {3}{2},\frac {1-n}{2},\frac {3-n}{2},\cos ^2(e+f x)\right )}{f (1-n) \sqrt {\sin ^2(e+f x)}} \]
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Rule 2656
Rule 2712
Rubi steps \begin{align*} \text {integral}& = \left (b^2 (b \cos (e+f x))^{-1+n} (b \sec (e+f x))^{-1+n}\right ) \int (b \cos (e+f x))^{-n} \sin ^4(e+f x) \, dx \\ & = -\frac {b \operatorname {Hypergeometric2F1}\left (-\frac {3}{2},\frac {1-n}{2},\frac {3-n}{2},\cos ^2(e+f x)\right ) (b \sec (e+f x))^{-1+n} \sin (e+f x)}{f (1-n) \sqrt {\sin ^2(e+f x)}} \\ \end{align*}
Time = 0.30 (sec) , antiderivative size = 63, normalized size of antiderivative = 0.86 \[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=\frac {\operatorname {Hypergeometric2F1}\left (\frac {5}{2},3-\frac {n}{2},\frac {7}{2},-\tan ^2(e+f x)\right ) (b \sec (e+f x))^n \sec ^2(e+f x)^{-n/2} \tan ^5(e+f x)}{5 f} \]
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\[\int \left (b \sec \left (f x +e \right )\right )^{n} \left (\sin ^{4}\left (f x +e \right )\right )d x\]
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\[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=\int { \left (b \sec \left (f x + e\right )\right )^{n} \sin \left (f x + e\right )^{4} \,d x } \]
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\[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=\int \left (b \sec {\left (e + f x \right )}\right )^{n} \sin ^{4}{\left (e + f x \right )}\, dx \]
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\[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=\int { \left (b \sec \left (f x + e\right )\right )^{n} \sin \left (f x + e\right )^{4} \,d x } \]
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\[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=\int { \left (b \sec \left (f x + e\right )\right )^{n} \sin \left (f x + e\right )^{4} \,d x } \]
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Timed out. \[ \int (b \sec (e+f x))^n \sin ^4(e+f x) \, dx=\int {\sin \left (e+f\,x\right )}^4\,{\left (\frac {b}{\cos \left (e+f\,x\right )}\right )}^n \,d x \]
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