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y=1/4ln((x-1)/(x+1))-1/2arctgx

Derivada de y=1/4ln((x-1)/(x+1))-1/2arctgx

Función f() - derivada -er orden en el punto
v

Gráfico:

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Solución

Ha introducido [src]
   /x - 1\          
log|-----|          
   \x + 1/   acot(x)
---------- - -------
    4           2   
$$\frac{\log{\left(\frac{x - 1}{x + 1} \right)}}{4} - \frac{\operatorname{acot}{\left(x \right)}}{2}$$
log((x - 1)/(x + 1))/4 - acot(x)/2
Gráfica
Primera derivada [src]
                     /  1      x - 1  \
             (x + 1)*|----- - --------|
                     |x + 1          2|
    1                \        (x + 1) /
---------- + --------------------------
  /     2\           4*(x - 1)         
2*\1 + x /                             
$$\frac{1}{2 \left(x^{2} + 1\right)} + \frac{\left(x + 1\right) \left(- \frac{x - 1}{\left(x + 1\right)^{2}} + \frac{1}{x + 1}\right)}{4 \left(x - 1\right)}$$
Segunda derivada [src]
                   -1 + x           -1 + x    
              -1 + ------      -1 + ------    
      x            1 + x            1 + x     
- --------- + ----------- + ------------------
          2             2   4*(1 + x)*(-1 + x)
  /     2\    4*(-1 + x)                      
  \1 + x /                                    
$$- \frac{x}{\left(x^{2} + 1\right)^{2}} + \frac{\frac{x - 1}{x + 1} - 1}{4 \left(x - 1\right) \left(x + 1\right)} + \frac{\frac{x - 1}{x + 1} - 1}{4 \left(x - 1\right)^{2}}$$
Tercera derivada [src]
                               -1 + x            -1 + x                -1 + x    
                    2     -1 + ------       -1 + ------           -1 + ------    
      1          4*x           1 + x             1 + x                 1 + x     
- --------- + --------- - ----------- - ------------------- - -------------------
          2           3             3                     2            2         
  /     2\    /     2\    2*(-1 + x)    2*(1 + x)*(-1 + x)    2*(1 + x) *(-1 + x)
  \1 + x /    \1 + x /                                                           
$$\frac{4 x^{2}}{\left(x^{2} + 1\right)^{3}} - \frac{1}{\left(x^{2} + 1\right)^{2}} - \frac{\frac{x - 1}{x + 1} - 1}{2 \left(x - 1\right) \left(x + 1\right)^{2}} - \frac{\frac{x - 1}{x + 1} - 1}{2 \left(x - 1\right)^{2} \left(x + 1\right)} - \frac{\frac{x - 1}{x + 1} - 1}{2 \left(x - 1\right)^{3}}$$
Gráfico
Derivada de y=1/4ln((x-1)/(x+1))-1/2arctgx