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Derivative of 1/3*ln(ctg(x)+1)-1/6*ln(ctg^2(x)-ctg(x)+1)-2*3^(1/2)*arctg((2ctg(x)-1)/(3^(1/2)))

Function f() - derivative -N order at the point
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                     /   2                \                             
log(cot(x) + 1)   log\cot (x) - cot(x) + 1/       ___     /2*cot(x) - 1\
--------------- - ------------------------- - 2*\/ 3 *atan|------------|
       3                      6                           |     ___    |
                                                          \   \/ 3     /
$$\left(- \frac{\log{\left(\left(\cot^{2}{\left(x \right)} - \cot{\left(x \right)}\right) + 1 \right)}}{6} + \frac{\log{\left(\cot{\left(x \right)} + 1 \right)}}{3}\right) - 2 \sqrt{3} \operatorname{atan}{\left(\frac{2 \cot{\left(x \right)} - 1}{\sqrt{3}} \right)}$$
log(cot(x) + 1)/3 - log(cot(x)^2 - cot(x) + 1)/6 - 2*sqrt(3)*atan((2*cot(x) - 1)/sqrt(3))
The graph
The first derivative [src]
     /          2   \          2      /          2   \                   2    
   2*\-2 - 2*cot (x)/   1 + cot (x) + \-2 - 2*cot (x)/*cot(x)    -1 - cot (x) 
- ------------------- - ------------------------------------- + --------------
                    2            /   2                \         3*(cot(x) + 1)
      (2*cot(x) - 1)           6*\cot (x) - cot(x) + 1/                       
  1 + ---------------                                                         
             3                                                                
$$\frac{- \cot^{2}{\left(x \right)} - 1}{3 \left(\cot{\left(x \right)} + 1\right)} - \frac{\left(- 2 \cot^{2}{\left(x \right)} - 2\right) \cot{\left(x \right)} + \cot^{2}{\left(x \right)} + 1}{6 \left(\left(\cot^{2}{\left(x \right)} - \cot{\left(x \right)}\right) + 1\right)} - \frac{2 \left(- 2 \cot^{2}{\left(x \right)} - 2\right)}{\frac{\left(2 \cot{\left(x \right)} - 1\right)^{2}}{3} + 1}$$
The second derivative [src]
                2                                         2                                             2                                                                                  
   /       2   \    /       2        /       2   \       \       /       2   \             /       2   \                    /       2   \ /                  2   \     /       2   \       
   \1 + cot (x)/    \1 + cot (x) - 2*\1 + cot (x)/*cot(x)/    24*\1 + cot (x)/*cot(x)   48*\1 + cot (x)/ *(-1 + 2*cot(x))   \1 + cot (x)/*\1 - cot(x) + 3*cot (x)/   2*\1 + cot (x)/*cot(x)
- --------------- + --------------------------------------- - ----------------------- + --------------------------------- - -------------------------------------- + ----------------------
                2                                  2                               2                               2                 /       2            \              3*(1 + cot(x))    
  3*(1 + cot(x))             /       2            \             3 + (-1 + 2*cot(x))          /                   2\                3*\1 + cot (x) - cot(x)/                                
                           6*\1 + cot (x) - cot(x)/                                          \3 + (-1 + 2*cot(x)) /                                                                        
$$- \frac{\left(\cot^{2}{\left(x \right)} + 1\right) \left(3 \cot^{2}{\left(x \right)} - \cot{\left(x \right)} + 1\right)}{3 \left(\cot^{2}{\left(x \right)} - \cot{\left(x \right)} + 1\right)} + \frac{\left(- 2 \left(\cot^{2}{\left(x \right)} + 1\right) \cot{\left(x \right)} + \cot^{2}{\left(x \right)} + 1\right)^{2}}{6 \left(\cot^{2}{\left(x \right)} - \cot{\left(x \right)} + 1\right)^{2}} + \frac{2 \left(\cot^{2}{\left(x \right)} + 1\right) \cot{\left(x \right)}}{3 \left(\cot{\left(x \right)} + 1\right)} - \frac{\left(\cot^{2}{\left(x \right)} + 1\right)^{2}}{3 \left(\cot{\left(x \right)} + 1\right)^{2}} - \frac{24 \left(\cot^{2}{\left(x \right)} + 1\right) \cot{\left(x \right)}}{\left(2 \cot{\left(x \right)} - 1\right)^{2} + 3} + \frac{48 \left(2 \cot{\left(x \right)} - 1\right) \left(\cot^{2}{\left(x \right)} + 1\right)^{2}}{\left(\left(2 \cot{\left(x \right)} - 1\right)^{2} + 3\right)^{2}}$$
The third derivative [src]
                     3                       2                    2                  3                                         3                  2                                                      3                                                                                                                                                                                                                     2                       
        /       2   \           /       2   \        /       2   \      /       2   \    /       2        /       2   \       \      /       2   \                 2    /       2   \       /       2   \                 2        2    /       2   \   /       2   \ /          2           3        /       2   \       \   /       2   \ /       2        /       2   \       \ /                  2   \       /       2   \                        
     96*\1 + cot (x)/        24*\1 + cot (x)/      2*\1 + cot (x)/    2*\1 + cot (x)/    \1 + cot (x) - 2*\1 + cot (x)/*cot(x)/    2*\1 + cot (x)/ *cot(x)   48*cot (x)*\1 + cot (x)/   384*\1 + cot (x)/ *(-1 + 2*cot(x))    4*cot (x)*\1 + cot (x)/   \1 + cot (x)/*\-1 - 3*cot (x) + 4*cot (x) + 8*\1 + cot (x)/*cot(x)/   \1 + cot (x)/*\1 + cot (x) - 2*\1 + cot (x)/*cot(x)/*\1 - cot(x) + 3*cot (x)/   288*\1 + cot (x)/ *(-1 + 2*cot(x))*cot(x)
- ----------------------- + -------------------- - ---------------- - ---------------- - --------------------------------------- + ----------------------- + ------------------------ + ----------------------------------- - ----------------------- + ------------------------------------------------------------------- + ----------------------------------------------------------------------------- - -----------------------------------------
                        2                      2    3*(1 + cot(x))                  3                                   3                           2                             2                                 3              3*(1 + cot(x))                               /       2            \                                                                         2                                                             2         
  /                   2\    3 + (-1 + 2*cot(x))                       3*(1 + cot(x))              /       2            \                (1 + cot(x))           3 + (-1 + 2*cot(x))            /                   2\                                                          3*\1 + cot (x) - cot(x)/                                                   /       2            \                                        /                   2\          
  \3 + (-1 + 2*cot(x)) /                                                                        3*\1 + cot (x) - cot(x)/                                                                      \3 + (-1 + 2*cot(x)) /                                                                                                                                     \1 + cot (x) - cot(x)/                                        \3 + (-1 + 2*cot(x)) /          
$$\frac{\left(\cot^{2}{\left(x \right)} + 1\right) \left(- 2 \left(\cot^{2}{\left(x \right)} + 1\right) \cot{\left(x \right)} + \cot^{2}{\left(x \right)} + 1\right) \left(3 \cot^{2}{\left(x \right)} - \cot{\left(x \right)} + 1\right)}{\left(\cot^{2}{\left(x \right)} - \cot{\left(x \right)} + 1\right)^{2}} + \frac{\left(\cot^{2}{\left(x \right)} + 1\right) \left(8 \left(\cot^{2}{\left(x \right)} + 1\right) \cot{\left(x \right)} + 4 \cot^{3}{\left(x \right)} - 3 \cot^{2}{\left(x \right)} - 1\right)}{3 \left(\cot^{2}{\left(x \right)} - \cot{\left(x \right)} + 1\right)} - \frac{\left(- 2 \left(\cot^{2}{\left(x \right)} + 1\right) \cot{\left(x \right)} + \cot^{2}{\left(x \right)} + 1\right)^{3}}{3 \left(\cot^{2}{\left(x \right)} - \cot{\left(x \right)} + 1\right)^{3}} - \frac{2 \left(\cot^{2}{\left(x \right)} + 1\right)^{2}}{3 \left(\cot{\left(x \right)} + 1\right)} - \frac{4 \left(\cot^{2}{\left(x \right)} + 1\right) \cot^{2}{\left(x \right)}}{3 \left(\cot{\left(x \right)} + 1\right)} + \frac{2 \left(\cot^{2}{\left(x \right)} + 1\right)^{2} \cot{\left(x \right)}}{\left(\cot{\left(x \right)} + 1\right)^{2}} - \frac{2 \left(\cot^{2}{\left(x \right)} + 1\right)^{3}}{3 \left(\cot{\left(x \right)} + 1\right)^{3}} + \frac{24 \left(\cot^{2}{\left(x \right)} + 1\right)^{2}}{\left(2 \cot{\left(x \right)} - 1\right)^{2} + 3} + \frac{48 \left(\cot^{2}{\left(x \right)} + 1\right) \cot^{2}{\left(x \right)}}{\left(2 \cot{\left(x \right)} - 1\right)^{2} + 3} - \frac{288 \left(2 \cot{\left(x \right)} - 1\right) \left(\cot^{2}{\left(x \right)} + 1\right)^{2} \cot{\left(x \right)}}{\left(\left(2 \cot{\left(x \right)} - 1\right)^{2} + 3\right)^{2}} - \frac{96 \left(\cot^{2}{\left(x \right)} + 1\right)^{3}}{\left(\left(2 \cot{\left(x \right)} - 1\right)^{2} + 3\right)^{2}} + \frac{384 \left(2 \cot{\left(x \right)} - 1\right)^{2} \left(\cot^{2}{\left(x \right)} + 1\right)^{3}}{\left(\left(2 \cot{\left(x \right)} - 1\right)^{2} + 3\right)^{3}}$$