Optimal. Leaf size=104 \[ \frac{1}{16 d \left (a^2-a^2 \sin (c+d x)\right )}-\frac{3}{16 d \left (a^2 \sin (c+d x)+a^2\right )}+\frac{\tanh ^{-1}(\sin (c+d x))}{4 a^2 d}-\frac{a}{12 d (a \sin (c+d x)+a)^3}-\frac{1}{8 d (a \sin (c+d x)+a)^2} \]
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Rubi [A] time = 0.0820373, antiderivative size = 104, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.143, Rules used = {2667, 44, 206} \[ \frac{1}{16 d \left (a^2-a^2 \sin (c+d x)\right )}-\frac{3}{16 d \left (a^2 \sin (c+d x)+a^2\right )}+\frac{\tanh ^{-1}(\sin (c+d x))}{4 a^2 d}-\frac{a}{12 d (a \sin (c+d x)+a)^3}-\frac{1}{8 d (a \sin (c+d x)+a)^2} \]
Antiderivative was successfully verified.
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Rule 2667
Rule 44
Rule 206
Rubi steps
\begin{align*} \int \frac{\sec ^3(c+d x)}{(a+a \sin (c+d x))^2} \, dx &=\frac{a^3 \operatorname{Subst}\left (\int \frac{1}{(a-x)^2 (a+x)^4} \, dx,x,a \sin (c+d x)\right )}{d}\\ &=\frac{a^3 \operatorname{Subst}\left (\int \left (\frac{1}{16 a^4 (a-x)^2}+\frac{1}{4 a^2 (a+x)^4}+\frac{1}{4 a^3 (a+x)^3}+\frac{3}{16 a^4 (a+x)^2}+\frac{1}{4 a^4 \left (a^2-x^2\right )}\right ) \, dx,x,a \sin (c+d x)\right )}{d}\\ &=-\frac{a}{12 d (a+a \sin (c+d x))^3}-\frac{1}{8 d (a+a \sin (c+d x))^2}+\frac{1}{16 d \left (a^2-a^2 \sin (c+d x)\right )}-\frac{3}{16 d \left (a^2+a^2 \sin (c+d x)\right )}+\frac{\operatorname{Subst}\left (\int \frac{1}{a^2-x^2} \, dx,x,a \sin (c+d x)\right )}{4 a d}\\ &=\frac{\tanh ^{-1}(\sin (c+d x))}{4 a^2 d}-\frac{a}{12 d (a+a \sin (c+d x))^3}-\frac{1}{8 d (a+a \sin (c+d x))^2}+\frac{1}{16 d \left (a^2-a^2 \sin (c+d x)\right )}-\frac{3}{16 d \left (a^2+a^2 \sin (c+d x)\right )}\\ \end{align*}
Mathematica [A] time = 0.119599, size = 85, normalized size = 0.82 \[ -\frac{\sec ^2(c+d x) \left (-3 \sin ^3(c+d x)-6 \sin ^2(c+d x)-\sin (c+d x)+3 (\sin (c+d x)-1) (\sin (c+d x)+1)^3 \tanh ^{-1}(\sin (c+d x))+4\right )}{12 a^2 d (\sin (c+d x)+1)^2} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.087, size = 108, normalized size = 1. \begin{align*} -{\frac{1}{16\,d{a}^{2} \left ( \sin \left ( dx+c \right ) -1 \right ) }}-{\frac{\ln \left ( \sin \left ( dx+c \right ) -1 \right ) }{8\,d{a}^{2}}}-{\frac{1}{12\,d{a}^{2} \left ( 1+\sin \left ( dx+c \right ) \right ) ^{3}}}-{\frac{1}{8\,d{a}^{2} \left ( 1+\sin \left ( dx+c \right ) \right ) ^{2}}}-{\frac{3}{16\,d{a}^{2} \left ( 1+\sin \left ( dx+c \right ) \right ) }}+{\frac{\ln \left ( 1+\sin \left ( dx+c \right ) \right ) }{8\,d{a}^{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.14414, size = 146, normalized size = 1.4 \begin{align*} -\frac{\frac{2 \,{\left (3 \, \sin \left (d x + c\right )^{3} + 6 \, \sin \left (d x + c\right )^{2} + \sin \left (d x + c\right ) - 4\right )}}{a^{2} \sin \left (d x + c\right )^{4} + 2 \, a^{2} \sin \left (d x + c\right )^{3} - 2 \, a^{2} \sin \left (d x + c\right ) - a^{2}} - \frac{3 \, \log \left (\sin \left (d x + c\right ) + 1\right )}{a^{2}} + \frac{3 \, \log \left (\sin \left (d x + c\right ) - 1\right )}{a^{2}}}{24 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.20367, size = 466, normalized size = 4.48 \begin{align*} \frac{12 \, \cos \left (d x + c\right )^{2} + 3 \,{\left (\cos \left (d x + c\right )^{4} - 2 \, \cos \left (d x + c\right )^{2} \sin \left (d x + c\right ) - 2 \, \cos \left (d x + c\right )^{2}\right )} \log \left (\sin \left (d x + c\right ) + 1\right ) - 3 \,{\left (\cos \left (d x + c\right )^{4} - 2 \, \cos \left (d x + c\right )^{2} \sin \left (d x + c\right ) - 2 \, \cos \left (d x + c\right )^{2}\right )} \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \,{\left (3 \, \cos \left (d x + c\right )^{2} - 4\right )} \sin \left (d x + c\right ) - 4}{24 \,{\left (a^{2} d \cos \left (d x + c\right )^{4} - 2 \, a^{2} d \cos \left (d x + c\right )^{2} \sin \left (d x + c\right ) - 2 \, a^{2} d \cos \left (d x + c\right )^{2}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \frac{\int \frac{\sec ^{3}{\left (c + d x \right )}}{\sin ^{2}{\left (c + d x \right )} + 2 \sin{\left (c + d x \right )} + 1}\, dx}{a^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.19462, size = 143, normalized size = 1.38 \begin{align*} \frac{\frac{6 \, \log \left ({\left | \sin \left (d x + c\right ) + 1 \right |}\right )}{a^{2}} - \frac{6 \, \log \left ({\left | \sin \left (d x + c\right ) - 1 \right |}\right )}{a^{2}} + \frac{3 \,{\left (2 \, \sin \left (d x + c\right ) - 3\right )}}{a^{2}{\left (\sin \left (d x + c\right ) - 1\right )}} - \frac{11 \, \sin \left (d x + c\right )^{3} + 42 \, \sin \left (d x + c\right )^{2} + 57 \, \sin \left (d x + c\right ) + 30}{a^{2}{\left (\sin \left (d x + c\right ) + 1\right )}^{3}}}{48 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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