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(x×lnx)/((x+1)×(lnx+1))

Derivada de (x×lnx)/((x+1)×(lnx+1))

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

Gráfico:

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Definida a trozos:

Solución

Ha introducido [src]
      x*log(x)      
--------------------
(x + 1)*(log(x) + 1)
$$\frac{x \log{\left(x \right)}}{\left(x + 1\right) \left(\log{\left(x \right)} + 1\right)}$$
(x*log(x))/(((x + 1)*(log(x) + 1)))
Solución detallada
  1. Se aplica la regla de la derivada parcial:

    y .

    Para calcular :

    1. Se aplica la regla de la derivada de una multiplicación:

      ; calculamos :

      1. Según el principio, aplicamos: tenemos

      ; calculamos :

      1. Derivado es .

      Como resultado de:

    Para calcular :

    1. Se aplica la regla de la derivada de una multiplicación:

      ; calculamos :

      1. diferenciamos miembro por miembro:

        1. La derivada de una constante es igual a cero.

        2. Según el principio, aplicamos: tenemos

        Como resultado de:

      ; calculamos :

      1. diferenciamos miembro por miembro:

        1. La derivada de una constante es igual a cero.

        2. Derivado es .

        Como resultado de:

      Como resultado de:

    Ahora aplicamos la regla de la derivada de una divesión:

  2. Simplificamos:


Respuesta:

Gráfica
Primera derivada [src]
                                      /              x + 1\       
                                    x*|-1 - log(x) - -----|*log(x)
         1                            \                x  /       
--------------------*(1 + log(x)) + ------------------------------
(x + 1)*(log(x) + 1)                           2             2    
                                        (x + 1) *(log(x) + 1)     
$$\frac{x \left(- \log{\left(x \right)} - 1 - \frac{x + 1}{x}\right) \log{\left(x \right)}}{\left(x + 1\right)^{2} \left(\log{\left(x \right)} + 1\right)^{2}} + \frac{1}{\left(x + 1\right) \left(\log{\left(x \right)} + 1\right)} \left(\log{\left(x \right)} + 1\right)$$
Segunda derivada [src]
                               /    1 + x                                                                1 + x       1 + x         \       
                               |1 + ----- + log(x)                                                   2 - -----   1 + ----- + log(x)|       
      /    1 + x         \     |      x              /  1           1       \ /    1 + x         \         x           x           |       
    2*|1 + ----- + log(x)|   x*|------------------ + |----- + --------------|*|1 + ----- + log(x)| - --------- + ------------------|*log(x)
1     \      x           /     \      1 + x          \1 + x   x*(1 + log(x))/ \      x           /       x         x*(1 + log(x))  /       
- - ---------------------- + --------------------------------------------------------------------------------------------------------------
x           1 + x                                                         (1 + x)*(1 + log(x))                                             
-------------------------------------------------------------------------------------------------------------------------------------------
                                                            (1 + x)*(1 + log(x))                                                           
$$\frac{\frac{x \left(\left(\frac{1}{x + 1} + \frac{1}{x \left(\log{\left(x \right)} + 1\right)}\right) \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right) + \frac{\log{\left(x \right)} + 1 + \frac{x + 1}{x}}{x + 1} - \frac{2 - \frac{x + 1}{x}}{x} + \frac{\log{\left(x \right)} + 1 + \frac{x + 1}{x}}{x \left(\log{\left(x \right)} + 1\right)}\right) \log{\left(x \right)}}{\left(x + 1\right) \left(\log{\left(x \right)} + 1\right)} - \frac{2 \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right)}{x + 1} + \frac{1}{x}}{\left(x + 1\right) \left(\log{\left(x \right)} + 1\right)}$$
Tercera derivada [src]
                                                                                                                                            /                                                                                                    2*(1 + x)     /    1 + x         \       1 + x            /  1           1       \ /    1 + x         \   /    1 + x\ /  1           1       \     /    1 + x\      /    1 + x\      /    1 + x         \   /  1           1       \ /    1 + x         \     /    1 + x         \\       
         /    1 + x                                                                1 + x       1 + x         \                              |                                                                                                3 - ---------   3*|1 + ----- + log(x)|   1 + ----- + log(x)   |----- + --------------|*|1 + ----- + log(x)|   |2 - -----|*|----- + --------------|   3*|2 - -----|    3*|2 - -----|    3*|1 + ----- + log(x)|   |----- + --------------|*|1 + ----- + log(x)|   4*|1 + ----- + log(x)||       
         |1 + ----- + log(x)                                                   2 - -----   1 + ----- + log(x)|                              |/    1 + x         \ /   2              1                 2                     2           \           x         \      x           /         x              \1 + x   x*(1 + log(x))/ \      x           /   \      x  / \1 + x   x*(1 + log(x))/     \      x  /      \      x  /      \      x           /   \1 + x   x*(1 + log(x))/ \      x           /     \      x           /|       
         |      x              /  1           1       \ /    1 + x         \         x           x           |     /    1 + x         \   x*||1 + ----- + log(x)|*|-------- + --------------- + ---------------- + ----------------------| - ------------- + ---------------------- + ------------------ + --------------------------------------------- - ------------------------------------ - ------------- - --------------- + ---------------------- + --------------------------------------------- + ----------------------|*log(x)
       3*|------------------ + |----- + --------------|*|1 + ----- + log(x)| - --------- + ------------------|   3*|1 + ----- + log(x)|     |\      x           / |       2    2                 2             2   x*(1 + x)*(1 + log(x))|          2                      2            2                                      1 + x                                        x                       x*(1 + x)      2                    2             2                      x*(1 + log(x))                  x*(1 + x)*(1 + log(x))|       
  1      \      1 + x          \1 + x   x*(1 + log(x))/ \      x           /       x         x*(1 + log(x))  /     \      x           /     \                     \(1 + x)    x *(1 + log(x))   x *(1 + log(x))                          /         x                (1 + x)            x *(1 + log(x))                                                                                                            x *(1 + log(x))      x *(1 + log(x))                                                                             /       
- -- + ------------------------------------------------------------------------------------------------------- - ---------------------- - -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
   2                                                    1 + x                                                    x*(1 + x)*(1 + log(x))                                                                                                                                                                                          (1 + x)*(1 + log(x))                                                                                                                                                                                      
  x                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                                                                                                            (1 + x)*(1 + log(x))                                                                                                                                                                                                                                                           
$$\frac{- \frac{x \left(\left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right) \left(\frac{2}{\left(x + 1\right)^{2}} + \frac{2}{x \left(x + 1\right) \left(\log{\left(x \right)} + 1\right)} + \frac{1}{x^{2} \left(\log{\left(x \right)} + 1\right)} + \frac{2}{x^{2} \left(\log{\left(x \right)} + 1\right)^{2}}\right) + \frac{\left(\frac{1}{x + 1} + \frac{1}{x \left(\log{\left(x \right)} + 1\right)}\right) \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right)}{x + 1} + \frac{3 \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right)}{\left(x + 1\right)^{2}} - \frac{\left(2 - \frac{x + 1}{x}\right) \left(\frac{1}{x + 1} + \frac{1}{x \left(\log{\left(x \right)} + 1\right)}\right)}{x} - \frac{3 \left(2 - \frac{x + 1}{x}\right)}{x \left(x + 1\right)} + \frac{\left(\frac{1}{x + 1} + \frac{1}{x \left(\log{\left(x \right)} + 1\right)}\right) \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right)}{x \left(\log{\left(x \right)} + 1\right)} + \frac{4 \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right)}{x \left(x + 1\right) \left(\log{\left(x \right)} + 1\right)} - \frac{3 \left(2 - \frac{x + 1}{x}\right)}{x^{2} \left(\log{\left(x \right)} + 1\right)} - \frac{3 - \frac{2 \left(x + 1\right)}{x}}{x^{2}} + \frac{\log{\left(x \right)} + 1 + \frac{x + 1}{x}}{x^{2} \left(\log{\left(x \right)} + 1\right)} + \frac{3 \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right)}{x^{2} \left(\log{\left(x \right)} + 1\right)^{2}}\right) \log{\left(x \right)}}{\left(x + 1\right) \left(\log{\left(x \right)} + 1\right)} + \frac{3 \left(\left(\frac{1}{x + 1} + \frac{1}{x \left(\log{\left(x \right)} + 1\right)}\right) \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right) + \frac{\log{\left(x \right)} + 1 + \frac{x + 1}{x}}{x + 1} - \frac{2 - \frac{x + 1}{x}}{x} + \frac{\log{\left(x \right)} + 1 + \frac{x + 1}{x}}{x \left(\log{\left(x \right)} + 1\right)}\right)}{x + 1} - \frac{3 \left(\log{\left(x \right)} + 1 + \frac{x + 1}{x}\right)}{x \left(x + 1\right) \left(\log{\left(x \right)} + 1\right)} - \frac{1}{x^{2}}}{\left(x + 1\right) \left(\log{\left(x \right)} + 1\right)}$$
Gráfico
Derivada de (x×lnx)/((x+1)×(lnx+1))