Integrand size = 19, antiderivative size = 60 \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=a x+\frac {a \cot (c+d x)}{d}-\frac {b \cot ^2(c+d x)}{2 d}-\frac {a \cot ^3(c+d x)}{3 d}-\frac {b \log (\sin (c+d x))}{d} \]
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Time = 0.11 (sec) , antiderivative size = 60, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.158, Rules used = {3610, 3612, 3556} \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=-\frac {a \cot ^3(c+d x)}{3 d}+\frac {a \cot (c+d x)}{d}+a x-\frac {b \cot ^2(c+d x)}{2 d}-\frac {b \log (\sin (c+d x))}{d} \]
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Rule 3556
Rule 3610
Rule 3612
Rubi steps \begin{align*} \text {integral}& = -\frac {a \cot ^3(c+d x)}{3 d}+\int \cot ^3(c+d x) (b-a \tan (c+d x)) \, dx \\ & = -\frac {b \cot ^2(c+d x)}{2 d}-\frac {a \cot ^3(c+d x)}{3 d}+\int \cot ^2(c+d x) (-a-b \tan (c+d x)) \, dx \\ & = \frac {a \cot (c+d x)}{d}-\frac {b \cot ^2(c+d x)}{2 d}-\frac {a \cot ^3(c+d x)}{3 d}+\int \cot (c+d x) (-b+a \tan (c+d x)) \, dx \\ & = a x+\frac {a \cot (c+d x)}{d}-\frac {b \cot ^2(c+d x)}{2 d}-\frac {a \cot ^3(c+d x)}{3 d}-b \int \cot (c+d x) \, dx \\ & = a x+\frac {a \cot (c+d x)}{d}-\frac {b \cot ^2(c+d x)}{2 d}-\frac {a \cot ^3(c+d x)}{3 d}-\frac {b \log (\sin (c+d x))}{d} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 3 in optimal.
Time = 0.33 (sec) , antiderivative size = 70, normalized size of antiderivative = 1.17 \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=-\frac {a \cot ^3(c+d x) \operatorname {Hypergeometric2F1}\left (-\frac {3}{2},1,-\frac {1}{2},-\tan ^2(c+d x)\right )}{3 d}-\frac {b \left (\cot ^2(c+d x)+2 \log (\cos (c+d x))+2 \log (\tan (c+d x))\right )}{2 d} \]
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Time = 0.43 (sec) , antiderivative size = 65, normalized size of antiderivative = 1.08
method | result | size |
parallelrisch | \(\frac {-2 \left (\cot ^{3}\left (d x +c \right )\right ) a -3 \left (\cot ^{2}\left (d x +c \right )\right ) b +6 a d x +6 \cot \left (d x +c \right ) a -6 b \ln \left (\tan \left (d x +c \right )\right )+3 b \ln \left (\sec ^{2}\left (d x +c \right )\right )}{6 d}\) | \(65\) |
derivativedivides | \(\frac {-\frac {a}{3 \tan \left (d x +c \right )^{3}}-\frac {b}{2 \tan \left (d x +c \right )^{2}}+\frac {a}{\tan \left (d x +c \right )}-b \ln \left (\tan \left (d x +c \right )\right )+\frac {b \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+a \arctan \left (\tan \left (d x +c \right )\right )}{d}\) | \(71\) |
default | \(\frac {-\frac {a}{3 \tan \left (d x +c \right )^{3}}-\frac {b}{2 \tan \left (d x +c \right )^{2}}+\frac {a}{\tan \left (d x +c \right )}-b \ln \left (\tan \left (d x +c \right )\right )+\frac {b \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+a \arctan \left (\tan \left (d x +c \right )\right )}{d}\) | \(71\) |
norman | \(\frac {a x \left (\tan ^{3}\left (d x +c \right )\right )+\frac {a \left (\tan ^{2}\left (d x +c \right )\right )}{d}-\frac {a}{3 d}-\frac {b \tan \left (d x +c \right )}{2 d}}{\tan \left (d x +c \right )^{3}}-\frac {b \ln \left (\tan \left (d x +c \right )\right )}{d}+\frac {b \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2 d}\) | \(84\) |
risch | \(i b x +a x +\frac {2 i b c}{d}+\frac {4 i a \,{\mathrm e}^{4 i \left (d x +c \right )}+2 b \,{\mathrm e}^{4 i \left (d x +c \right )}-4 i a \,{\mathrm e}^{2 i \left (d x +c \right )}-2 b \,{\mathrm e}^{2 i \left (d x +c \right )}+\frac {8 i a}{3}}{d \left ({\mathrm e}^{2 i \left (d x +c \right )}-1\right )^{3}}-\frac {b \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-1\right )}{d}\) | \(109\) |
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Time = 0.24 (sec) , antiderivative size = 89, normalized size of antiderivative = 1.48 \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=-\frac {3 \, b \log \left (\frac {\tan \left (d x + c\right )^{2}}{\tan \left (d x + c\right )^{2} + 1}\right ) \tan \left (d x + c\right )^{3} - 3 \, {\left (2 \, a d x - b\right )} \tan \left (d x + c\right )^{3} - 6 \, a \tan \left (d x + c\right )^{2} + 3 \, b \tan \left (d x + c\right ) + 2 \, a}{6 \, d \tan \left (d x + c\right )^{3}} \]
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Time = 0.62 (sec) , antiderivative size = 94, normalized size of antiderivative = 1.57 \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=\begin {cases} \tilde {\infty } a x & \text {for}\: c = 0 \wedge d = 0 \\x \left (a + b \tan {\left (c \right )}\right ) \cot ^{4}{\left (c \right )} & \text {for}\: d = 0 \\\tilde {\infty } a x & \text {for}\: c = - d x \\a x + \frac {a}{d \tan {\left (c + d x \right )}} - \frac {a}{3 d \tan ^{3}{\left (c + d x \right )}} + \frac {b \log {\left (\tan ^{2}{\left (c + d x \right )} + 1 \right )}}{2 d} - \frac {b \log {\left (\tan {\left (c + d x \right )} \right )}}{d} - \frac {b}{2 d \tan ^{2}{\left (c + d x \right )}} & \text {otherwise} \end {cases} \]
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Time = 0.41 (sec) , antiderivative size = 71, normalized size of antiderivative = 1.18 \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=\frac {6 \, {\left (d x + c\right )} a + 3 \, b \log \left (\tan \left (d x + c\right )^{2} + 1\right ) - 6 \, b \log \left (\tan \left (d x + c\right )\right ) + \frac {6 \, a \tan \left (d x + c\right )^{2} - 3 \, b \tan \left (d x + c\right ) - 2 \, a}{\tan \left (d x + c\right )^{3}}}{6 \, d} \]
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Leaf count of result is larger than twice the leaf count of optimal. 140 vs. \(2 (56) = 112\).
Time = 0.53 (sec) , antiderivative size = 140, normalized size of antiderivative = 2.33 \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=\frac {a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3} - 3 \, b \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + 24 \, {\left (d x + c\right )} a + 24 \, b \log \left (\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + 1\right ) - 24 \, b \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) \right |}\right ) - 15 \, a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + \frac {44 \, b \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3} + 15 \, a \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} - 3 \, b \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) - a}{\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{3}}}{24 \, d} \]
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Time = 4.77 (sec) , antiderivative size = 96, normalized size of antiderivative = 1.60 \[ \int \cot ^4(c+d x) (a+b \tan (c+d x)) \, dx=-\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )-\mathrm {i}\right )\,\left (-\frac {b}{2}+\frac {a\,1{}\mathrm {i}}{2}\right )}{d}+\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )+1{}\mathrm {i}\right )\,\left (\frac {b}{2}+\frac {a\,1{}\mathrm {i}}{2}\right )}{d}-\frac {b\,\ln \left (\mathrm {tan}\left (c+d\,x\right )\right )}{d}-\frac {{\mathrm {cot}\left (c+d\,x\right )}^3\,\left (-a\,{\mathrm {tan}\left (c+d\,x\right )}^2+\frac {b\,\mathrm {tan}\left (c+d\,x\right )}{2}+\frac {a}{3}\right )}{d} \]
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