Integrand size = 29, antiderivative size = 302 \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=-\frac {\left (4 a^3 A b-4 a A b^3-a^4 B+6 a^2 b^2 B-b^4 B\right ) x}{\left (a^2+b^2\right )^4}+\frac {A \log (\sin (c+d x))}{a^4 d}-\frac {b \left (10 a^6 A b+5 a^4 A b^3+4 a^2 A b^5+A b^7-4 a^7 B+4 a^5 b^2 B\right ) \log (a \cos (c+d x)+b \sin (c+d x))}{a^4 \left (a^2+b^2\right )^4 d}+\frac {b (A b-a B)}{3 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^3}+\frac {b \left (3 a^2 A b+A b^3-2 a^3 B\right )}{2 a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))^2}+\frac {b \left (6 a^4 A b+3 a^2 A b^3+A b^5-3 a^5 B+a^3 b^2 B\right )}{a^3 \left (a^2+b^2\right )^3 d (a+b \tan (c+d x))} \]
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Time = 1.08 (sec) , antiderivative size = 302, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.172, Rules used = {3690, 3730, 3732, 3611, 3556} \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=\frac {A \log (\sin (c+d x))}{a^4 d}+\frac {b (A b-a B)}{3 a d \left (a^2+b^2\right ) (a+b \tan (c+d x))^3}+\frac {b \left (-2 a^3 B+3 a^2 A b+A b^3\right )}{2 a^2 d \left (a^2+b^2\right )^2 (a+b \tan (c+d x))^2}-\frac {x \left (a^4 (-B)+4 a^3 A b+6 a^2 b^2 B-4 a A b^3-b^4 B\right )}{\left (a^2+b^2\right )^4}+\frac {b \left (-3 a^5 B+6 a^4 A b+a^3 b^2 B+3 a^2 A b^3+A b^5\right )}{a^3 d \left (a^2+b^2\right )^3 (a+b \tan (c+d x))}-\frac {b \left (-4 a^7 B+10 a^6 A b+4 a^5 b^2 B+5 a^4 A b^3+4 a^2 A b^5+A b^7\right ) \log (a \cos (c+d x)+b \sin (c+d x))}{a^4 d \left (a^2+b^2\right )^4} \]
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Rule 3556
Rule 3611
Rule 3690
Rule 3730
Rule 3732
Rubi steps \begin{align*} \text {integral}& = \frac {b (A b-a B)}{3 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^3}+\frac {\int \frac {\cot (c+d x) \left (3 A \left (a^2+b^2\right )-3 a (A b-a B) \tan (c+d x)+3 b (A b-a B) \tan ^2(c+d x)\right )}{(a+b \tan (c+d x))^3} \, dx}{3 a \left (a^2+b^2\right )} \\ & = \frac {b (A b-a B)}{3 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^3}+\frac {b \left (3 a^2 A b+A b^3-2 a^3 B\right )}{2 a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))^2}+\frac {\int \frac {\cot (c+d x) \left (6 A \left (a^2+b^2\right )^2-6 a^2 \left (2 a A b-a^2 B+b^2 B\right ) \tan (c+d x)+6 b \left (3 a^2 A b+A b^3-2 a^3 B\right ) \tan ^2(c+d x)\right )}{(a+b \tan (c+d x))^2} \, dx}{6 a^2 \left (a^2+b^2\right )^2} \\ & = \frac {b (A b-a B)}{3 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^3}+\frac {b \left (3 a^2 A b+A b^3-2 a^3 B\right )}{2 a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))^2}+\frac {b \left (6 a^4 A b+3 a^2 A b^3+A b^5-3 a^5 B+a^3 b^2 B\right )}{a^3 \left (a^2+b^2\right )^3 d (a+b \tan (c+d x))}+\frac {\int \frac {\cot (c+d x) \left (6 A \left (a^2+b^2\right )^3-6 a^3 \left (3 a^2 A b-A b^3-a^3 B+3 a b^2 B\right ) \tan (c+d x)+6 b \left (6 a^4 A b+3 a^2 A b^3+A b^5-3 a^5 B+a^3 b^2 B\right ) \tan ^2(c+d x)\right )}{a+b \tan (c+d x)} \, dx}{6 a^3 \left (a^2+b^2\right )^3} \\ & = -\frac {\left (4 a^3 A b-4 a A b^3-a^4 B+6 a^2 b^2 B-b^4 B\right ) x}{\left (a^2+b^2\right )^4}+\frac {b (A b-a B)}{3 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^3}+\frac {b \left (3 a^2 A b+A b^3-2 a^3 B\right )}{2 a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))^2}+\frac {b \left (6 a^4 A b+3 a^2 A b^3+A b^5-3 a^5 B+a^3 b^2 B\right )}{a^3 \left (a^2+b^2\right )^3 d (a+b \tan (c+d x))}+\frac {A \int \cot (c+d x) \, dx}{a^4}-\frac {\left (b \left (10 a^6 A b+5 a^4 A b^3+4 a^2 A b^5+A b^7-4 a^7 B+4 a^5 b^2 B\right )\right ) \int \frac {b-a \tan (c+d x)}{a+b \tan (c+d x)} \, dx}{a^4 \left (a^2+b^2\right )^4} \\ & = -\frac {\left (4 a^3 A b-4 a A b^3-a^4 B+6 a^2 b^2 B-b^4 B\right ) x}{\left (a^2+b^2\right )^4}+\frac {A \log (\sin (c+d x))}{a^4 d}-\frac {b \left (10 a^6 A b+5 a^4 A b^3+4 a^2 A b^5+A b^7-4 a^7 B+4 a^5 b^2 B\right ) \log (a \cos (c+d x)+b \sin (c+d x))}{a^4 \left (a^2+b^2\right )^4 d}+\frac {b (A b-a B)}{3 a \left (a^2+b^2\right ) d (a+b \tan (c+d x))^3}+\frac {b \left (3 a^2 A b+A b^3-2 a^3 B\right )}{2 a^2 \left (a^2+b^2\right )^2 d (a+b \tan (c+d x))^2}+\frac {b \left (6 a^4 A b+3 a^2 A b^3+A b^5-3 a^5 B+a^3 b^2 B\right )}{a^3 \left (a^2+b^2\right )^3 d (a+b \tan (c+d x))} \\ \end{align*}
Result contains complex when optimal does not.
Time = 3.54 (sec) , antiderivative size = 308, normalized size of antiderivative = 1.02 \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=\frac {\frac {3 \left (-a^4 (a-i b)^4 (A+i B) \log (i-\tan (c+d x))+2 A \left (a^2+b^2\right )^4 \log (\tan (c+d x))-a^4 (a+i b)^4 (A-i B) \log (i+\tan (c+d x))-2 b \left (10 a^6 A b+5 a^4 A b^3+4 a^2 A b^5+A b^7-4 a^7 B+4 a^5 b^2 B\right ) \log (a+b \tan (c+d x))\right )}{a^2 \left (a^2+b^2\right )^2}+\frac {2 a b \left (a^2+b^2\right ) (A b-a B)}{(a+b \tan (c+d x))^3}+\frac {3 b \left (3 a^2 A b+A b^3-2 a^3 B\right )}{(a+b \tan (c+d x))^2}+\frac {6 b \left (6 a^4 A b+3 a^2 A b^3+A b^5-3 a^5 B+a^3 b^2 B\right )}{a \left (a^2+b^2\right ) (a+b \tan (c+d x))}}{6 a^2 \left (a^2+b^2\right )^2 d} \]
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Time = 0.68 (sec) , antiderivative size = 335, normalized size of antiderivative = 1.11
method | result | size |
derivativedivides | \(\frac {\frac {\frac {\left (-A \,a^{4}+6 A \,a^{2} b^{2}-A \,b^{4}-4 B \,a^{3} b +4 B a \,b^{3}\right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+\left (-4 A \,a^{3} b +4 A a \,b^{3}+B \,a^{4}-6 B \,a^{2} b^{2}+B \,b^{4}\right ) \arctan \left (\tan \left (d x +c \right )\right )}{\left (a^{2}+b^{2}\right )^{4}}+\frac {A \ln \left (\tan \left (d x +c \right )\right )}{a^{4}}+\frac {b \left (3 A \,a^{2} b +A \,b^{3}-2 B \,a^{3}\right )}{2 \left (a^{2}+b^{2}\right )^{2} a^{2} \left (a +b \tan \left (d x +c \right )\right )^{2}}+\frac {b \left (6 A \,a^{4} b +3 A \,a^{2} b^{3}+A \,b^{5}-3 B \,a^{5}+B \,a^{3} b^{2}\right )}{\left (a^{2}+b^{2}\right )^{3} a^{3} \left (a +b \tan \left (d x +c \right )\right )}-\frac {b \left (10 A \,a^{6} b +5 A \,a^{4} b^{3}+4 A \,a^{2} b^{5}+A \,b^{7}-4 B \,a^{7}+4 B \,a^{5} b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{\left (a^{2}+b^{2}\right )^{4} a^{4}}+\frac {\left (A b -B a \right ) b}{3 \left (a^{2}+b^{2}\right ) a \left (a +b \tan \left (d x +c \right )\right )^{3}}}{d}\) | \(335\) |
default | \(\frac {\frac {\frac {\left (-A \,a^{4}+6 A \,a^{2} b^{2}-A \,b^{4}-4 B \,a^{3} b +4 B a \,b^{3}\right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+\left (-4 A \,a^{3} b +4 A a \,b^{3}+B \,a^{4}-6 B \,a^{2} b^{2}+B \,b^{4}\right ) \arctan \left (\tan \left (d x +c \right )\right )}{\left (a^{2}+b^{2}\right )^{4}}+\frac {A \ln \left (\tan \left (d x +c \right )\right )}{a^{4}}+\frac {b \left (3 A \,a^{2} b +A \,b^{3}-2 B \,a^{3}\right )}{2 \left (a^{2}+b^{2}\right )^{2} a^{2} \left (a +b \tan \left (d x +c \right )\right )^{2}}+\frac {b \left (6 A \,a^{4} b +3 A \,a^{2} b^{3}+A \,b^{5}-3 B \,a^{5}+B \,a^{3} b^{2}\right )}{\left (a^{2}+b^{2}\right )^{3} a^{3} \left (a +b \tan \left (d x +c \right )\right )}-\frac {b \left (10 A \,a^{6} b +5 A \,a^{4} b^{3}+4 A \,a^{2} b^{5}+A \,b^{7}-4 B \,a^{7}+4 B \,a^{5} b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{\left (a^{2}+b^{2}\right )^{4} a^{4}}+\frac {\left (A b -B a \right ) b}{3 \left (a^{2}+b^{2}\right ) a \left (a +b \tan \left (d x +c \right )\right )^{3}}}{d}\) | \(335\) |
parallelrisch | \(\frac {-20 \left (A \,a^{6} b +\frac {1}{2} A \,a^{4} b^{3}+\frac {2}{5} A \,a^{2} b^{5}+\frac {1}{10} A \,b^{7}-\frac {2}{5} B \,a^{7}+\frac {2}{5} B \,a^{5} b^{2}\right ) b \left (a +b \tan \left (d x +c \right )\right )^{3} \ln \left (a +b \tan \left (d x +c \right )\right )-a^{4} \left (a +b \tan \left (d x +c \right )\right )^{3} \left (A \,a^{4}-6 A \,a^{2} b^{2}+A \,b^{4}+4 B \,a^{3} b -4 B a \,b^{3}\right ) \ln \left (\sec ^{2}\left (d x +c \right )\right )+2 A \left (a^{2}+b^{2}\right )^{4} \left (a +b \tan \left (d x +c \right )\right )^{3} \ln \left (\tan \left (d x +c \right )\right )-8 \left (-\frac {B \,a^{8} d x}{4}+b \left (A d x -\frac {13 B}{12}\right ) a^{7}+\frac {47 \left (\frac {36 B d x}{47}+A \right ) b^{2} a^{6}}{24}-b^{3} \left (A d x +\frac {5 B}{4}\right ) a^{5}+\frac {27 b^{4} \left (-\frac {2 B d x}{27}+A \right ) a^{4}}{8}-\frac {B \,a^{3} b^{5}}{4}+\frac {15 A \,a^{2} b^{6}}{8}-\frac {B a \,b^{7}}{12}+\frac {11 A \,b^{8}}{24}\right ) b^{3} \left (\tan ^{3}\left (d x +c \right )\right )-24 a \,b^{2} \left (-\frac {B \,a^{8} d x}{4}+b \left (A d x -\frac {5 B}{6}\right ) a^{7}+\frac {35 \left (\frac {36 B d x}{35}+A \right ) b^{2} a^{6}}{24}-\left (A d x +\frac {13 B}{12}\right ) b^{3} a^{5}+\frac {21 \left (-\frac {2 B d x}{21}+A \right ) b^{4} a^{4}}{8}-\frac {B \,a^{3} b^{5}}{3}+\frac {37 A \,a^{2} b^{6}}{24}-\frac {B a \,b^{7}}{12}+\frac {3 A \,b^{8}}{8}\right ) \left (\tan ^{2}\left (d x +c \right )\right )-24 a^{2} \left (-\frac {B \,a^{8} d x}{4}+b \left (A d x -\frac {B}{2}\right ) a^{7}+\frac {5 b^{2} \left (\frac {9 B d x}{5}+A \right ) a^{6}}{6}-b^{3} \left (A d x +\frac {3 B}{4}\right ) a^{5}+\frac {19 \left (-\frac {3 B d x}{19}+A \right ) b^{4} a^{4}}{12}-\frac {B \,a^{3} b^{5}}{3}+A \,a^{2} b^{6}-\frac {B a \,b^{7}}{12}+\frac {A \,b^{8}}{4}\right ) b \tan \left (d x +c \right )-8 d \,a^{7} x \left (A \,a^{3} b -A a \,b^{3}-\frac {1}{4} B \,a^{4}+\frac {3}{2} B \,a^{2} b^{2}-\frac {1}{4} B \,b^{4}\right )}{2 \left (a^{2}+b^{2}\right )^{4} d \,a^{4} \left (a +b \tan \left (d x +c \right )\right )^{3}}\) | \(571\) |
norman | \(\frac {-\frac {\left (4 A \,a^{3} b -4 A a \,b^{3}-B \,a^{4}+6 B \,a^{2} b^{2}-B \,b^{4}\right ) a^{3} x}{\left (a^{6}+3 a^{4} b^{2}+3 a^{2} b^{4}+b^{6}\right ) \left (a^{2}+b^{2}\right )}-\frac {b^{3} \left (4 A \,a^{3} b -4 A a \,b^{3}-B \,a^{4}+6 B \,a^{2} b^{2}-B \,b^{4}\right ) x \left (\tan ^{3}\left (d x +c \right )\right )}{\left (a^{6}+3 a^{4} b^{2}+3 a^{2} b^{4}+b^{6}\right ) \left (a^{2}+b^{2}\right )}-\frac {b \left (10 A \,a^{4} b^{2}+9 A \,a^{2} b^{4}+3 A \,b^{6}-6 B \,a^{5} b -3 B \,a^{3} b^{3}-B a \,b^{5}\right ) \tan \left (d x +c \right )}{d \,a^{2} \left (a^{6}+3 a^{4} b^{2}+3 a^{2} b^{4}+b^{6}\right )}-\frac {b^{2} \left (35 A \,a^{4} b^{2}+28 A \,a^{2} b^{4}+9 A \,b^{6}-20 B \,a^{5} b -6 B \,a^{3} b^{3}-2 B a \,b^{5}\right ) \left (\tan ^{2}\left (d x +c \right )\right )}{2 d \,a^{3} \left (a^{6}+3 a^{4} b^{2}+3 a^{2} b^{4}+b^{6}\right )}-\frac {b^{3} \left (47 A \,a^{4} b^{2}+34 A \,a^{2} b^{4}+11 A \,b^{6}-26 B \,a^{5} b -4 B \,a^{3} b^{3}-2 B a \,b^{5}\right ) \left (\tan ^{3}\left (d x +c \right )\right )}{6 d \,a^{4} \left (a^{6}+3 a^{4} b^{2}+3 a^{2} b^{4}+b^{6}\right )}-\frac {3 b \left (4 A \,a^{3} b -4 A a \,b^{3}-B \,a^{4}+6 B \,a^{2} b^{2}-B \,b^{4}\right ) a^{2} x \tan \left (d x +c \right )}{\left (a^{6}+3 a^{4} b^{2}+3 a^{2} b^{4}+b^{6}\right ) \left (a^{2}+b^{2}\right )}-\frac {3 b^{2} \left (4 A \,a^{3} b -4 A a \,b^{3}-B \,a^{4}+6 B \,a^{2} b^{2}-B \,b^{4}\right ) a x \left (\tan ^{2}\left (d x +c \right )\right )}{\left (a^{6}+3 a^{4} b^{2}+3 a^{2} b^{4}+b^{6}\right ) \left (a^{2}+b^{2}\right )}}{\left (a +b \tan \left (d x +c \right )\right )^{3}}+\frac {A \ln \left (\tan \left (d x +c \right )\right )}{d \,a^{4}}-\frac {\left (A \,a^{4}-6 A \,a^{2} b^{2}+A \,b^{4}+4 B \,a^{3} b -4 B a \,b^{3}\right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2 d \left (a^{8}+4 a^{6} b^{2}+6 a^{4} b^{4}+4 a^{2} b^{6}+b^{8}\right )}-\frac {b \left (10 A \,a^{6} b +5 A \,a^{4} b^{3}+4 A \,a^{2} b^{5}+A \,b^{7}-4 B \,a^{7}+4 B \,a^{5} b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{\left (a^{8}+4 a^{6} b^{2}+6 a^{4} b^{4}+4 a^{2} b^{6}+b^{8}\right ) a^{4} d}\) | \(813\) |
risch | \(\text {Expression too large to display}\) | \(1616\) |
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Leaf count of result is larger than twice the leaf count of optimal. 1126 vs. \(2 (299) = 598\).
Time = 0.38 (sec) , antiderivative size = 1126, normalized size of antiderivative = 3.73 \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=\text {Too large to display} \]
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Exception generated. \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=\text {Exception raised: AttributeError} \]
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none
Time = 0.30 (sec) , antiderivative size = 580, normalized size of antiderivative = 1.92 \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=\frac {\frac {6 \, {\left (B a^{4} - 4 \, A a^{3} b - 6 \, B a^{2} b^{2} + 4 \, A a b^{3} + B b^{4}\right )} {\left (d x + c\right )}}{a^{8} + 4 \, a^{6} b^{2} + 6 \, a^{4} b^{4} + 4 \, a^{2} b^{6} + b^{8}} + \frac {6 \, {\left (4 \, B a^{7} b - 10 \, A a^{6} b^{2} - 4 \, B a^{5} b^{3} - 5 \, A a^{4} b^{4} - 4 \, A a^{2} b^{6} - A b^{8}\right )} \log \left (b \tan \left (d x + c\right ) + a\right )}{a^{12} + 4 \, a^{10} b^{2} + 6 \, a^{8} b^{4} + 4 \, a^{6} b^{6} + a^{4} b^{8}} - \frac {3 \, {\left (A a^{4} + 4 \, B a^{3} b - 6 \, A a^{2} b^{2} - 4 \, B a b^{3} + A b^{4}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{8} + 4 \, a^{6} b^{2} + 6 \, a^{4} b^{4} + 4 \, a^{2} b^{6} + b^{8}} - \frac {26 \, B a^{7} b - 47 \, A a^{6} b^{2} + 4 \, B a^{5} b^{3} - 34 \, A a^{4} b^{4} + 2 \, B a^{3} b^{5} - 11 \, A a^{2} b^{6} + 6 \, {\left (3 \, B a^{5} b^{3} - 6 \, A a^{4} b^{4} - B a^{3} b^{5} - 3 \, A a^{2} b^{6} - A b^{8}\right )} \tan \left (d x + c\right )^{2} + 3 \, {\left (14 \, B a^{6} b^{2} - 27 \, A a^{5} b^{3} - 2 \, B a^{4} b^{4} - 16 \, A a^{3} b^{5} - 5 \, A a b^{7}\right )} \tan \left (d x + c\right )}{a^{12} + 3 \, a^{10} b^{2} + 3 \, a^{8} b^{4} + a^{6} b^{6} + {\left (a^{9} b^{3} + 3 \, a^{7} b^{5} + 3 \, a^{5} b^{7} + a^{3} b^{9}\right )} \tan \left (d x + c\right )^{3} + 3 \, {\left (a^{10} b^{2} + 3 \, a^{8} b^{4} + 3 \, a^{6} b^{6} + a^{4} b^{8}\right )} \tan \left (d x + c\right )^{2} + 3 \, {\left (a^{11} b + 3 \, a^{9} b^{3} + 3 \, a^{7} b^{5} + a^{5} b^{7}\right )} \tan \left (d x + c\right )} + \frac {6 \, A \log \left (\tan \left (d x + c\right )\right )}{a^{4}}}{6 \, d} \]
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Leaf count of result is larger than twice the leaf count of optimal. 722 vs. \(2 (299) = 598\).
Time = 0.99 (sec) , antiderivative size = 722, normalized size of antiderivative = 2.39 \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=\frac {\frac {6 \, {\left (B a^{4} - 4 \, A a^{3} b - 6 \, B a^{2} b^{2} + 4 \, A a b^{3} + B b^{4}\right )} {\left (d x + c\right )}}{a^{8} + 4 \, a^{6} b^{2} + 6 \, a^{4} b^{4} + 4 \, a^{2} b^{6} + b^{8}} - \frac {3 \, {\left (A a^{4} + 4 \, B a^{3} b - 6 \, A a^{2} b^{2} - 4 \, B a b^{3} + A b^{4}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{8} + 4 \, a^{6} b^{2} + 6 \, a^{4} b^{4} + 4 \, a^{2} b^{6} + b^{8}} + \frac {6 \, {\left (4 \, B a^{7} b^{2} - 10 \, A a^{6} b^{3} - 4 \, B a^{5} b^{4} - 5 \, A a^{4} b^{5} - 4 \, A a^{2} b^{7} - A b^{9}\right )} \log \left ({\left | b \tan \left (d x + c\right ) + a \right |}\right )}{a^{12} b + 4 \, a^{10} b^{3} + 6 \, a^{8} b^{5} + 4 \, a^{6} b^{7} + a^{4} b^{9}} + \frac {6 \, A \log \left ({\left | \tan \left (d x + c\right ) \right |}\right )}{a^{4}} - \frac {44 \, B a^{7} b^{4} \tan \left (d x + c\right )^{3} - 110 \, A a^{6} b^{5} \tan \left (d x + c\right )^{3} - 44 \, B a^{5} b^{6} \tan \left (d x + c\right )^{3} - 55 \, A a^{4} b^{7} \tan \left (d x + c\right )^{3} - 44 \, A a^{2} b^{9} \tan \left (d x + c\right )^{3} - 11 \, A b^{11} \tan \left (d x + c\right )^{3} + 150 \, B a^{8} b^{3} \tan \left (d x + c\right )^{2} - 366 \, A a^{7} b^{4} \tan \left (d x + c\right )^{2} - 120 \, B a^{6} b^{5} \tan \left (d x + c\right )^{2} - 219 \, A a^{5} b^{6} \tan \left (d x + c\right )^{2} - 6 \, B a^{4} b^{7} \tan \left (d x + c\right )^{2} - 156 \, A a^{3} b^{8} \tan \left (d x + c\right )^{2} - 39 \, A a b^{10} \tan \left (d x + c\right )^{2} + 174 \, B a^{9} b^{2} \tan \left (d x + c\right ) - 411 \, A a^{8} b^{3} \tan \left (d x + c\right ) - 96 \, B a^{7} b^{4} \tan \left (d x + c\right ) - 294 \, A a^{6} b^{5} \tan \left (d x + c\right ) - 6 \, B a^{5} b^{6} \tan \left (d x + c\right ) - 195 \, A a^{4} b^{7} \tan \left (d x + c\right ) - 48 \, A a^{2} b^{9} \tan \left (d x + c\right ) + 70 \, B a^{10} b - 157 \, A a^{9} b^{2} - 14 \, B a^{8} b^{3} - 136 \, A a^{7} b^{4} + 6 \, B a^{6} b^{5} - 89 \, A a^{5} b^{6} + 2 \, B a^{4} b^{7} - 22 \, A a^{3} b^{8}}{{\left (a^{12} + 4 \, a^{10} b^{2} + 6 \, a^{8} b^{4} + 4 \, a^{6} b^{6} + a^{4} b^{8}\right )} {\left (b \tan \left (d x + c\right ) + a\right )}^{3}}}{6 \, d} \]
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Time = 11.61 (sec) , antiderivative size = 484, normalized size of antiderivative = 1.60 \[ \int \frac {\cot (c+d x) (A+B \tan (c+d x))}{(a+b \tan (c+d x))^4} \, dx=\frac {\frac {-26\,B\,a^5\,b+47\,A\,a^4\,b^2-4\,B\,a^3\,b^3+34\,A\,a^2\,b^4-2\,B\,a\,b^5+11\,A\,b^6}{6\,a\,\left (a^6+3\,a^4\,b^2+3\,a^2\,b^4+b^6\right )}+\frac {{\mathrm {tan}\left (c+d\,x\right )}^2\,\left (-3\,B\,a^5\,b^3+6\,A\,a^4\,b^4+B\,a^3\,b^5+3\,A\,a^2\,b^6+A\,b^8\right )}{a^3\,\left (a^6+3\,a^4\,b^2+3\,a^2\,b^4+b^6\right )}+\frac {\mathrm {tan}\left (c+d\,x\right )\,\left (-14\,B\,a^5\,b^2+27\,A\,a^4\,b^3+2\,B\,a^3\,b^4+16\,A\,a^2\,b^5+5\,A\,b^7\right )}{2\,a^2\,\left (a^6+3\,a^4\,b^2+3\,a^2\,b^4+b^6\right )}}{d\,\left (a^3+3\,a^2\,b\,\mathrm {tan}\left (c+d\,x\right )+3\,a\,b^2\,{\mathrm {tan}\left (c+d\,x\right )}^2+b^3\,{\mathrm {tan}\left (c+d\,x\right )}^3\right )}+\frac {A\,\ln \left (\mathrm {tan}\left (c+d\,x\right )\right )}{a^4\,d}-\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )+1{}\mathrm {i}\right )\,\left (B+A\,1{}\mathrm {i}\right )}{2\,d\,\left (a^4\,1{}\mathrm {i}+4\,a^3\,b-a^2\,b^2\,6{}\mathrm {i}-4\,a\,b^3+b^4\,1{}\mathrm {i}\right )}-\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )-\mathrm {i}\right )\,\left (A+B\,1{}\mathrm {i}\right )}{2\,d\,\left (a^4+a^3\,b\,4{}\mathrm {i}-6\,a^2\,b^2-a\,b^3\,4{}\mathrm {i}+b^4\right )}-\frac {b\,\ln \left (a+b\,\mathrm {tan}\left (c+d\,x\right )\right )\,\left (-4\,B\,a^7+10\,A\,a^6\,b+4\,B\,a^5\,b^2+5\,A\,a^4\,b^3+4\,A\,a^2\,b^5+A\,b^7\right )}{a^4\,d\,{\left (a^2+b^2\right )}^4} \]
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