Optimal. Leaf size=168 \[ \frac{b^2 \left (3 a^2+b^2\right )}{a^2 d \left (a^2+b^2\right )^2 (a+b \tan (c+d x))}+\frac{b^2}{2 a d \left (a^2+b^2\right ) (a+b \tan (c+d x))^2}-\frac{b^2 \left (3 a^2 b^2+6 a^4+b^4\right ) \log (a \cos (c+d x)+b \sin (c+d x))}{a^3 d \left (a^2+b^2\right )^3}-\frac{b x \left (3 a^2-b^2\right )}{\left (a^2+b^2\right )^3}+\frac{\log (\sin (c+d x))}{a^3 d} \]
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Rubi [A] time = 0.41004, antiderivative size = 168, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 19, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.263, Rules used = {3569, 3649, 3651, 3530, 3475} \[ \frac{b^2 \left (3 a^2+b^2\right )}{a^2 d \left (a^2+b^2\right )^2 (a+b \tan (c+d x))}+\frac{b^2}{2 a d \left (a^2+b^2\right ) (a+b \tan (c+d x))^2}-\frac{b^2 \left (3 a^2 b^2+6 a^4+b^4\right ) \log (a \cos (c+d x)+b \sin (c+d x))}{a^3 d \left (a^2+b^2\right )^3}-\frac{b x \left (3 a^2-b^2\right )}{\left (a^2+b^2\right )^3}+\frac{\log (\sin (c+d x))}{a^3 d} \]
Antiderivative was successfully verified.
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Rule 3569
Rule 3649
Rule 3651
Rule 3530
Rule 3475
Rubi steps
\begin{align*} \int \frac{\cot (c+d x)}{(a+b \tan (c+d x))^3} \, dx &=\frac{b^2}{2 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^2}+\frac{\int \frac{\cot (c+d x) \left (2 \left (a^2+b^2\right )-2 a b \tan (c+d x)+2 b^2 \tan ^2(c+d x)\right )}{(a+b \tan (c+d x))^2} \, dx}{2 a \left (a^2+b^2\right )}\\ &=\frac{b^2}{2 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^2}+\frac{b^2 \left (3 a^2+b^2\right )}{a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))}+\frac{\int \frac{\cot (c+d x) \left (2 \left (a^2+b^2\right )^2-4 a^3 b \tan (c+d x)+2 b^2 \left (3 a^2+b^2\right ) \tan ^2(c+d x)\right )}{a+b \tan (c+d x)} \, dx}{2 a^2 \left (a^2+b^2\right )^2}\\ &=-\frac{b \left (3 a^2-b^2\right ) x}{\left (a^2+b^2\right )^3}+\frac{b^2}{2 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^2}+\frac{b^2 \left (3 a^2+b^2\right )}{a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))}+\frac{\int \cot (c+d x) \, dx}{a^3}-\frac{\left (b^2 \left (6 a^4+3 a^2 b^2+b^4\right )\right ) \int \frac{b-a \tan (c+d x)}{a+b \tan (c+d x)} \, dx}{a^3 \left (a^2+b^2\right )^3}\\ &=-\frac{b \left (3 a^2-b^2\right ) x}{\left (a^2+b^2\right )^3}+\frac{\log (\sin (c+d x))}{a^3 d}-\frac{b^2 \left (6 a^4+3 a^2 b^2+b^4\right ) \log (a \cos (c+d x)+b \sin (c+d x))}{a^3 \left (a^2+b^2\right )^3 d}+\frac{b^2}{2 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^2}+\frac{b^2 \left (3 a^2+b^2\right )}{a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))}\\ \end{align*}
Mathematica [C] time = 3.85454, size = 209, normalized size = 1.24 \[ \frac{\frac{4 a b^2}{\left (a^2+b^2\right ) (a+b \tan (c+d x))}+\frac{2 b^2}{a^2+a b \tan (c+d x)}-\frac{2 b^2 \left (3 a^2 b^2+6 a^4+b^4\right ) \log (a+b \tan (c+d x))}{a^2 \left (a^2+b^2\right )^2}+\frac{2 \left (a^2+b^2\right ) \log (\tan (c+d x))}{a^2}+\frac{b^2}{(a+b \tan (c+d x))^2}-\frac{a (a-i b) \log (-\tan (c+d x)+i)}{(a+i b)^2}-\frac{a (a+i b) \log (\tan (c+d x)+i)}{(a-i b)^2}}{2 a d \left (a^2+b^2\right )} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.106, size = 304, normalized size = 1.8 \begin{align*} -{\frac{\ln \left ( 1+ \left ( \tan \left ( dx+c \right ) \right ) ^{2} \right ){a}^{3}}{2\,d \left ({a}^{2}+{b}^{2} \right ) ^{3}}}+{\frac{3\,\ln \left ( 1+ \left ( \tan \left ( dx+c \right ) \right ) ^{2} \right ) a{b}^{2}}{2\,d \left ({a}^{2}+{b}^{2} \right ) ^{3}}}-3\,{\frac{\arctan \left ( \tan \left ( dx+c \right ) \right ){a}^{2}b}{d \left ({a}^{2}+{b}^{2} \right ) ^{3}}}+{\frac{\arctan \left ( \tan \left ( dx+c \right ) \right ){b}^{3}}{d \left ({a}^{2}+{b}^{2} \right ) ^{3}}}+{\frac{\ln \left ( \tan \left ( dx+c \right ) \right ) }{d{a}^{3}}}+{\frac{{b}^{2}}{2\, \left ({a}^{2}+{b}^{2} \right ) ad \left ( a+b\tan \left ( dx+c \right ) \right ) ^{2}}}+3\,{\frac{{b}^{2}}{d \left ({a}^{2}+{b}^{2} \right ) ^{2} \left ( a+b\tan \left ( dx+c \right ) \right ) }}+{\frac{{b}^{4}}{d \left ({a}^{2}+{b}^{2} \right ) ^{2}{a}^{2} \left ( a+b\tan \left ( dx+c \right ) \right ) }}-6\,{\frac{a\ln \left ( a+b\tan \left ( dx+c \right ) \right ){b}^{2}}{d \left ({a}^{2}+{b}^{2} \right ) ^{3}}}-3\,{\frac{{b}^{4}\ln \left ( a+b\tan \left ( dx+c \right ) \right ) }{d \left ({a}^{2}+{b}^{2} \right ) ^{3}a}}-{\frac{{b}^{6}\ln \left ( a+b\tan \left ( dx+c \right ) \right ) }{d \left ({a}^{2}+{b}^{2} \right ) ^{3}{a}^{3}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.64328, size = 392, normalized size = 2.33 \begin{align*} -\frac{\frac{2 \,{\left (3 \, a^{2} b - b^{3}\right )}{\left (d x + c\right )}}{a^{6} + 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} + b^{6}} + \frac{2 \,{\left (6 \, a^{4} b^{2} + 3 \, a^{2} b^{4} + b^{6}\right )} \log \left (b \tan \left (d x + c\right ) + a\right )}{a^{9} + 3 \, a^{7} b^{2} + 3 \, a^{5} b^{4} + a^{3} b^{6}} + \frac{{\left (a^{3} - 3 \, a b^{2}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{6} + 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} + b^{6}} - \frac{7 \, a^{3} b^{2} + 3 \, a b^{4} + 2 \,{\left (3 \, a^{2} b^{3} + b^{5}\right )} \tan \left (d x + c\right )}{a^{8} + 2 \, a^{6} b^{2} + a^{4} b^{4} +{\left (a^{6} b^{2} + 2 \, a^{4} b^{4} + a^{2} b^{6}\right )} \tan \left (d x + c\right )^{2} + 2 \,{\left (a^{7} b + 2 \, a^{5} b^{3} + a^{3} b^{5}\right )} \tan \left (d x + c\right )} - \frac{2 \, \log \left (\tan \left (d x + c\right )\right )}{a^{3}}}{2 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 2.22766, size = 1050, normalized size = 6.25 \begin{align*} \frac{9 \, a^{4} b^{4} + 3 \, a^{2} b^{6} - 2 \,{\left (3 \, a^{7} b - a^{5} b^{3}\right )} d x -{\left (7 \, a^{4} b^{4} + a^{2} b^{6} + 2 \,{\left (3 \, a^{5} b^{3} - a^{3} b^{5}\right )} d x\right )} \tan \left (d x + c\right )^{2} +{\left (a^{8} + 3 \, a^{6} b^{2} + 3 \, a^{4} b^{4} + a^{2} b^{6} +{\left (a^{6} b^{2} + 3 \, a^{4} b^{4} + 3 \, a^{2} b^{6} + b^{8}\right )} \tan \left (d x + c\right )^{2} + 2 \,{\left (a^{7} b + 3 \, a^{5} b^{3} + 3 \, a^{3} b^{5} + a b^{7}\right )} \tan \left (d x + c\right )\right )} \log \left (\frac{\tan \left (d x + c\right )^{2}}{\tan \left (d x + c\right )^{2} + 1}\right ) -{\left (6 \, a^{6} b^{2} + 3 \, a^{4} b^{4} + a^{2} b^{6} +{\left (6 \, a^{4} b^{4} + 3 \, a^{2} b^{6} + b^{8}\right )} \tan \left (d x + c\right )^{2} + 2 \,{\left (6 \, a^{5} b^{3} + 3 \, a^{3} b^{5} + a b^{7}\right )} \tan \left (d x + c\right )\right )} \log \left (\frac{b^{2} \tan \left (d x + c\right )^{2} + 2 \, a b \tan \left (d x + c\right ) + a^{2}}{\tan \left (d x + c\right )^{2} + 1}\right ) - 2 \,{\left (4 \, a^{5} b^{3} - 3 \, a^{3} b^{5} - a b^{7} + 2 \,{\left (3 \, a^{6} b^{2} - a^{4} b^{4}\right )} d x\right )} \tan \left (d x + c\right )}{2 \,{\left ({\left (a^{9} b^{2} + 3 \, a^{7} b^{4} + 3 \, a^{5} b^{6} + a^{3} b^{8}\right )} d \tan \left (d x + c\right )^{2} + 2 \,{\left (a^{10} b + 3 \, a^{8} b^{3} + 3 \, a^{6} b^{5} + a^{4} b^{7}\right )} d \tan \left (d x + c\right ) +{\left (a^{11} + 3 \, a^{9} b^{2} + 3 \, a^{7} b^{4} + a^{5} b^{6}\right )} d\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.35725, size = 443, normalized size = 2.64 \begin{align*} -\frac{\frac{2 \,{\left (3 \, a^{2} b - b^{3}\right )}{\left (d x + c\right )}}{a^{6} + 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} + b^{6}} + \frac{{\left (a^{3} - 3 \, a b^{2}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{6} + 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} + b^{6}} + \frac{2 \,{\left (6 \, a^{4} b^{3} + 3 \, a^{2} b^{5} + b^{7}\right )} \log \left ({\left | b \tan \left (d x + c\right ) + a \right |}\right )}{a^{9} b + 3 \, a^{7} b^{3} + 3 \, a^{5} b^{5} + a^{3} b^{7}} - \frac{18 \, a^{4} b^{4} \tan \left (d x + c\right )^{2} + 9 \, a^{2} b^{6} \tan \left (d x + c\right )^{2} + 3 \, b^{8} \tan \left (d x + c\right )^{2} + 42 \, a^{5} b^{3} \tan \left (d x + c\right ) + 26 \, a^{3} b^{5} \tan \left (d x + c\right ) + 8 \, a b^{7} \tan \left (d x + c\right ) + 25 \, a^{6} b^{2} + 19 \, a^{4} b^{4} + 6 \, a^{2} b^{6}}{{\left (a^{9} + 3 \, a^{7} b^{2} + 3 \, a^{5} b^{4} + a^{3} b^{6}\right )}{\left (b \tan \left (d x + c\right ) + a\right )}^{2}} - \frac{2 \, \log \left ({\left | \tan \left (d x + c\right ) \right |}\right )}{a^{3}}}{2 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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