Optimal. Leaf size=168 \[ \frac{a b^2}{d \left (a^2-b^2\right )^2 (a \cos (c+d x)+b)}+\frac{2 a b \left (a^2+b^2\right ) \log (a \cos (c+d x)+b)}{d \left (a^2-b^2\right )^3}+\frac{\csc ^2(c+d x) \left (2 a b-\left (a^2+b^2\right ) \cos (c+d x)\right )}{2 d \left (a^2-b^2\right )^2}+\frac{(a-b) \log (1-\cos (c+d x))}{4 d (a+b)^3}-\frac{(a+b) \log (\cos (c+d x)+1)}{4 d (a-b)^3} \]
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Rubi [A] time = 0.432896, antiderivative size = 168, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 5, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.238, Rules used = {3872, 2837, 12, 1647, 1629} \[ \frac{a b^2}{d \left (a^2-b^2\right )^2 (a \cos (c+d x)+b)}+\frac{2 a b \left (a^2+b^2\right ) \log (a \cos (c+d x)+b)}{d \left (a^2-b^2\right )^3}+\frac{\csc ^2(c+d x) \left (2 a b-\left (a^2+b^2\right ) \cos (c+d x)\right )}{2 d \left (a^2-b^2\right )^2}+\frac{(a-b) \log (1-\cos (c+d x))}{4 d (a+b)^3}-\frac{(a+b) \log (\cos (c+d x)+1)}{4 d (a-b)^3} \]
Antiderivative was successfully verified.
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Rule 3872
Rule 2837
Rule 12
Rule 1647
Rule 1629
Rubi steps
\begin{align*} \int \frac{\csc ^3(c+d x)}{(a+b \sec (c+d x))^2} \, dx &=\int \frac{\cot ^2(c+d x) \csc (c+d x)}{(-b-a \cos (c+d x))^2} \, dx\\ &=\frac{a^3 \operatorname{Subst}\left (\int \frac{x^2}{a^2 (-b+x)^2 \left (a^2-x^2\right )^2} \, dx,x,-a \cos (c+d x)\right )}{d}\\ &=\frac{a \operatorname{Subst}\left (\int \frac{x^2}{(-b+x)^2 \left (a^2-x^2\right )^2} \, dx,x,-a \cos (c+d x)\right )}{d}\\ &=\frac{\left (2 a b-\left (a^2+b^2\right ) \cos (c+d x)\right ) \csc ^2(c+d x)}{2 \left (a^2-b^2\right )^2 d}+\frac{\operatorname{Subst}\left (\int \frac{-\frac{a^2 b^2 \left (a^2+b^2\right )}{\left (a^2-b^2\right )^2}+\frac{2 a^2 b x}{a^2-b^2}+\frac{a^2 \left (a^2+b^2\right ) x^2}{\left (a^2-b^2\right )^2}}{(-b+x)^2 \left (a^2-x^2\right )} \, dx,x,-a \cos (c+d x)\right )}{2 a d}\\ &=\frac{\left (2 a b-\left (a^2+b^2\right ) \cos (c+d x)\right ) \csc ^2(c+d x)}{2 \left (a^2-b^2\right )^2 d}+\frac{\operatorname{Subst}\left (\int \left (\frac{a (a+b)}{2 (a-b)^3 (a-x)}+\frac{2 a^2 b^2}{(a-b)^2 (a+b)^2 (b-x)^2}-\frac{4 a^2 b \left (a^2+b^2\right )}{(a-b)^3 (a+b)^3 (b-x)}+\frac{a (a-b)}{2 (a+b)^3 (a+x)}\right ) \, dx,x,-a \cos (c+d x)\right )}{2 a d}\\ &=\frac{a b^2}{\left (a^2-b^2\right )^2 d (b+a \cos (c+d x))}+\frac{\left (2 a b-\left (a^2+b^2\right ) \cos (c+d x)\right ) \csc ^2(c+d x)}{2 \left (a^2-b^2\right )^2 d}+\frac{(a-b) \log (1-\cos (c+d x))}{4 (a+b)^3 d}-\frac{(a+b) \log (1+\cos (c+d x))}{4 (a-b)^3 d}+\frac{2 a b \left (a^2+b^2\right ) \log (b+a \cos (c+d x))}{\left (a^2-b^2\right )^3 d}\\ \end{align*}
Mathematica [A] time = 1.30005, size = 224, normalized size = 1.33 \[ \frac{\sec ^2(c+d x) (a \cos (c+d x)+b) \left (\frac{16 a b \left (a^2+b^2\right ) (a \cos (c+d x)+b) \log (a \cos (c+d x)+b)}{\left (a^2-b^2\right )^3}+\frac{8 a b^2}{(a-b)^2 (a+b)^2}+\frac{4 (a+b) \log \left (\cos \left (\frac{1}{2} (c+d x)\right )\right ) (a \cos (c+d x)+b)}{(b-a)^3}-\frac{\csc ^2\left (\frac{1}{2} (c+d x)\right ) (a \cos (c+d x)+b)}{(a+b)^2}+\frac{\sec ^2\left (\frac{1}{2} (c+d x)\right ) (a \cos (c+d x)+b)}{(a-b)^2}+\frac{4 (a-b) \log \left (\sin \left (\frac{1}{2} (c+d x)\right )\right ) (a \cos (c+d x)+b)}{(a+b)^3}\right )}{8 d (a+b \sec (c+d x))^2} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.078, size = 224, normalized size = 1.3 \begin{align*}{\frac{a{b}^{2}}{d \left ( a+b \right ) ^{2} \left ( a-b \right ) ^{2} \left ( b+a\cos \left ( dx+c \right ) \right ) }}+2\,{\frac{{a}^{3}b\ln \left ( b+a\cos \left ( dx+c \right ) \right ) }{d \left ( a+b \right ) ^{3} \left ( a-b \right ) ^{3}}}+2\,{\frac{a{b}^{3}\ln \left ( b+a\cos \left ( dx+c \right ) \right ) }{d \left ( a+b \right ) ^{3} \left ( a-b \right ) ^{3}}}+{\frac{1}{4\,d \left ( a-b \right ) ^{2} \left ( \cos \left ( dx+c \right ) +1 \right ) }}-{\frac{\ln \left ( \cos \left ( dx+c \right ) +1 \right ) a}{4\,d \left ( a-b \right ) ^{3}}}-{\frac{\ln \left ( \cos \left ( dx+c \right ) +1 \right ) b}{4\,d \left ( a-b \right ) ^{3}}}+{\frac{1}{4\,d \left ( a+b \right ) ^{2} \left ( -1+\cos \left ( dx+c \right ) \right ) }}+{\frac{\ln \left ( -1+\cos \left ( dx+c \right ) \right ) a}{4\,d \left ( a+b \right ) ^{3}}}-{\frac{\ln \left ( -1+\cos \left ( dx+c \right ) \right ) b}{4\,d \left ( a+b \right ) ^{3}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.10275, size = 370, normalized size = 2.2 \begin{align*} \frac{\frac{8 \,{\left (a^{3} b + a b^{3}\right )} \log \left (a \cos \left (d x + c\right ) + b\right )}{a^{6} - 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} - b^{6}} - \frac{{\left (a + b\right )} \log \left (\cos \left (d x + c\right ) + 1\right )}{a^{3} - 3 \, a^{2} b + 3 \, a b^{2} - b^{3}} + \frac{{\left (a - b\right )} \log \left (\cos \left (d x + c\right ) - 1\right )}{a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}} + \frac{2 \,{\left (4 \, a b^{2} -{\left (a^{3} + 3 \, a b^{2}\right )} \cos \left (d x + c\right )^{2} +{\left (a^{2} b - b^{3}\right )} \cos \left (d x + c\right )\right )}}{a^{4} b - 2 \, a^{2} b^{3} + b^{5} -{\left (a^{5} - 2 \, a^{3} b^{2} + a b^{4}\right )} \cos \left (d x + c\right )^{3} -{\left (a^{4} b - 2 \, a^{2} b^{3} + b^{5}\right )} \cos \left (d x + c\right )^{2} +{\left (a^{5} - 2 \, a^{3} b^{2} + a b^{4}\right )} \cos \left (d x + c\right )}}{4 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 2.81496, size = 1378, normalized size = 8.2 \begin{align*} -\frac{8 \, a^{3} b^{2} - 8 \, a b^{4} - 2 \,{\left (a^{5} + 2 \, a^{3} b^{2} - 3 \, a b^{4}\right )} \cos \left (d x + c\right )^{2} + 2 \,{\left (a^{4} b - 2 \, a^{2} b^{3} + b^{5}\right )} \cos \left (d x + c\right ) + 8 \,{\left (a^{3} b^{2} + a b^{4} -{\left (a^{4} b + a^{2} b^{3}\right )} \cos \left (d x + c\right )^{3} -{\left (a^{3} b^{2} + a b^{4}\right )} \cos \left (d x + c\right )^{2} +{\left (a^{4} b + a^{2} b^{3}\right )} \cos \left (d x + c\right )\right )} \log \left (a \cos \left (d x + c\right ) + b\right ) -{\left (a^{4} b + 4 \, a^{3} b^{2} + 6 \, a^{2} b^{3} + 4 \, a b^{4} + b^{5} -{\left (a^{5} + 4 \, a^{4} b + 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} + a b^{4}\right )} \cos \left (d x + c\right )^{3} -{\left (a^{4} b + 4 \, a^{3} b^{2} + 6 \, a^{2} b^{3} + 4 \, a b^{4} + b^{5}\right )} \cos \left (d x + c\right )^{2} +{\left (a^{5} + 4 \, a^{4} b + 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} + a b^{4}\right )} \cos \left (d x + c\right )\right )} \log \left (\frac{1}{2} \, \cos \left (d x + c\right ) + \frac{1}{2}\right ) +{\left (a^{4} b - 4 \, a^{3} b^{2} + 6 \, a^{2} b^{3} - 4 \, a b^{4} + b^{5} -{\left (a^{5} - 4 \, a^{4} b + 6 \, a^{3} b^{2} - 4 \, a^{2} b^{3} + a b^{4}\right )} \cos \left (d x + c\right )^{3} -{\left (a^{4} b - 4 \, a^{3} b^{2} + 6 \, a^{2} b^{3} - 4 \, a b^{4} + b^{5}\right )} \cos \left (d x + c\right )^{2} +{\left (a^{5} - 4 \, a^{4} b + 6 \, a^{3} b^{2} - 4 \, a^{2} b^{3} + a b^{4}\right )} \cos \left (d x + c\right )\right )} \log \left (-\frac{1}{2} \, \cos \left (d x + c\right ) + \frac{1}{2}\right )}{4 \,{\left ({\left (a^{7} - 3 \, a^{5} b^{2} + 3 \, a^{3} b^{4} - a b^{6}\right )} d \cos \left (d x + c\right )^{3} +{\left (a^{6} b - 3 \, a^{4} b^{3} + 3 \, a^{2} b^{5} - b^{7}\right )} d \cos \left (d x + c\right )^{2} -{\left (a^{7} - 3 \, a^{5} b^{2} + 3 \, a^{3} b^{4} - a b^{6}\right )} d \cos \left (d x + c\right ) -{\left (a^{6} b - 3 \, a^{4} b^{3} + 3 \, a^{2} b^{5} - b^{7}\right )} d\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*} \int \frac{\csc ^{3}{\left (c + d x \right )}}{\left (a + b \sec{\left (c + d x \right )}\right )^{2}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.43979, size = 616, normalized size = 3.67 \begin{align*} \frac{\frac{2 \,{\left (a - b\right )} \log \left (\frac{{\left | -\cos \left (d x + c\right ) + 1 \right |}}{{\left | \cos \left (d x + c\right ) + 1 \right |}}\right )}{a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}} + \frac{16 \,{\left (a^{3} b + a b^{3}\right )} \log \left ({\left | -a - b - \frac{a{\left (\cos \left (d x + c\right ) - 1\right )}}{\cos \left (d x + c\right ) + 1} + \frac{b{\left (\cos \left (d x + c\right ) - 1\right )}}{\cos \left (d x + c\right ) + 1} \right |}\right )}{a^{6} - 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} - b^{6}} + \frac{a^{3} - a^{2} b - a b^{2} + b^{3} - \frac{8 \, a^{2} b{\left (\cos \left (d x + c\right ) - 1\right )}}{\cos \left (d x + c\right ) + 1} + \frac{8 \, a b^{2}{\left (\cos \left (d x + c\right ) - 1\right )}}{\cos \left (d x + c\right ) + 1} - \frac{a^{3}{\left (\cos \left (d x + c\right ) - 1\right )}^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}} - \frac{3 \, a^{2} b{\left (\cos \left (d x + c\right ) - 1\right )}^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}} - \frac{3 \, a b^{2}{\left (\cos \left (d x + c\right ) - 1\right )}^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}} - \frac{b^{3}{\left (\cos \left (d x + c\right ) - 1\right )}^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}}}{{\left (a^{4} - 2 \, a^{2} b^{2} + b^{4}\right )}{\left (\frac{a{\left (\cos \left (d x + c\right ) - 1\right )}}{\cos \left (d x + c\right ) + 1} + \frac{b{\left (\cos \left (d x + c\right ) - 1\right )}}{\cos \left (d x + c\right ) + 1} + \frac{a{\left (\cos \left (d x + c\right ) - 1\right )}^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}} - \frac{b{\left (\cos \left (d x + c\right ) - 1\right )}^{2}}{{\left (\cos \left (d x + c\right ) + 1\right )}^{2}}\right )}} - \frac{\cos \left (d x + c\right ) - 1}{{\left (a^{2} - 2 \, a b + b^{2}\right )}{\left (\cos \left (d x + c\right ) + 1\right )}}}{8 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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