Sr Examen

Derivada de y=ln(|x|)/x

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

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
log(|x|)
--------
   x    
$$\frac{\log{\left(\left|{x}\right| \right)}}{x}$$
log(|x|)/x
Primera derivada [src]
  log(|x|)   sign(x)
- -------- + -------
      2       x*|x| 
     x              
$$\frac{\operatorname{sign}{\left(x \right)}}{x \left|{x}\right|} - \frac{\log{\left(\left|{x}\right| \right)}}{x^{2}}$$
Segunda derivada [src]
      2                                              
  sign (x)   2*log(|x|)   2*DiracDelta(x)   2*sign(x)
- -------- + ---------- + --------------- - ---------
      2           2             |x|           x*|x|  
     x           x                                   
-----------------------------------------------------
                          x                          
$$\frac{\frac{2 \delta\left(x\right)}{\left|{x}\right|} - \frac{2 \operatorname{sign}{\left(x \right)}}{x \left|{x}\right|} + \frac{2 \log{\left(\left|{x}\right| \right)}}{x^{2}} - \frac{\operatorname{sign}^{2}{\left(x \right)}}{x^{2}}}{x}$$
Tercera derivada [src]
                 /      2                     \                                                                        
                 |  sign (x)   2*DiracDelta(x)|                                                                        
               3*|- -------- + ---------------|                                                                        
                 |      2            |x|      |         2                                                              
  6*log(|x|)     \     x                      /   2*sign (x)   2*DiracDelta(x, 1)   6*DiracDelta(x)*sign(x)   6*sign(x)
- ---------- - -------------------------------- + ---------- + ------------------ - ----------------------- + ---------
       3                      x                        3              |x|                       2                2     
      x                                               x                                        x                x *|x| 
-----------------------------------------------------------------------------------------------------------------------
                                                           x                                                           
$$\frac{\frac{2 \delta^{\left( 1 \right)}\left( x \right)}{\left|{x}\right|} - \frac{3 \left(\frac{2 \delta\left(x\right)}{\left|{x}\right|} - \frac{\operatorname{sign}^{2}{\left(x \right)}}{x^{2}}\right)}{x} - \frac{6 \delta\left(x\right) \operatorname{sign}{\left(x \right)}}{x^{2}} + \frac{6 \operatorname{sign}{\left(x \right)}}{x^{2} \left|{x}\right|} - \frac{6 \log{\left(\left|{x}\right| \right)}}{x^{3}} + \frac{2 \operatorname{sign}^{2}{\left(x \right)}}{x^{3}}}{x}$$