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y=sin*sin(1-lnx/x)

Derivada de y=sin*sin(1-lnx/x)

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

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

    ddxf(x)g(x)=f(x)ddxg(x)+g(x)ddxf(x)\frac{d}{d x} f{\left(x \right)} g{\left(x \right)} = f{\left(x \right)} \frac{d}{d x} g{\left(x \right)} + g{\left(x \right)} \frac{d}{d x} f{\left(x \right)}

    f(x)=sin(x)f{\left(x \right)} = \sin{\left(x \right)}; calculamos ddxf(x)\frac{d}{d x} f{\left(x \right)}:

    1. La derivada del seno es igual al coseno:

      ddxsin(x)=cos(x)\frac{d}{d x} \sin{\left(x \right)} = \cos{\left(x \right)}

    g(x)=sin(1log(x)x)g{\left(x \right)} = \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}; calculamos ddxg(x)\frac{d}{d x} g{\left(x \right)}:

    1. Sustituimos u=1log(x)xu = 1 - \frac{\log{\left(x \right)}}{x}.

    2. La derivada del seno es igual al coseno:

      ddusin(u)=cos(u)\frac{d}{d u} \sin{\left(u \right)} = \cos{\left(u \right)}

    3. Luego se aplica una cadena de reglas. Multiplicamos por ddx(1log(x)x)\frac{d}{d x} \left(1 - \frac{\log{\left(x \right)}}{x}\right):

      1. diferenciamos 1log(x)x1 - \frac{\log{\left(x \right)}}{x} miembro por miembro:

        1. La derivada de una constante 11 es igual a cero.

        2. La derivada del producto de una constante por función es igual al producto de esta constante por la derivada de esta función.

          1. Se aplica la regla de la derivada parcial:

            ddxf(x)g(x)=f(x)ddxg(x)+g(x)ddxf(x)g2(x)\frac{d}{d x} \frac{f{\left(x \right)}}{g{\left(x \right)}} = \frac{- f{\left(x \right)} \frac{d}{d x} g{\left(x \right)} + g{\left(x \right)} \frac{d}{d x} f{\left(x \right)}}{g^{2}{\left(x \right)}}

            f(x)=log(x)f{\left(x \right)} = \log{\left(x \right)} y g(x)=xg{\left(x \right)} = x.

            Para calcular ddxf(x)\frac{d}{d x} f{\left(x \right)}:

            1. Derivado log(x)\log{\left(x \right)} es 1x\frac{1}{x}.

            Para calcular ddxg(x)\frac{d}{d x} g{\left(x \right)}:

            1. Según el principio, aplicamos: xx tenemos 11

            Ahora aplicamos la regla de la derivada de una divesión:

            1log(x)x2\frac{1 - \log{\left(x \right)}}{x^{2}}

          Entonces, como resultado: 1log(x)x2- \frac{1 - \log{\left(x \right)}}{x^{2}}

        Como resultado de: 1log(x)x2- \frac{1 - \log{\left(x \right)}}{x^{2}}

      Como resultado de la secuencia de reglas:

      (1log(x))cos(1log(x)x)x2- \frac{\left(1 - \log{\left(x \right)}\right) \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x^{2}}

    Como resultado de: sin(1log(x)x)cos(x)(1log(x))sin(x)cos(1log(x)x)x2\sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} \cos{\left(x \right)} - \frac{\left(1 - \log{\left(x \right)}\right) \sin{\left(x \right)} \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x^{2}}

  2. Simplificamos:

    x2sin(1log(x)x)cos(x)+(log(x)1)sin(x)cos(1log(x)x)x2\frac{x^{2} \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} \cos{\left(x \right)} + \left(\log{\left(x \right)} - 1\right) \sin{\left(x \right)} \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x^{2}}


Respuesta:

x2sin(1log(x)x)cos(x)+(log(x)1)sin(x)cos(1log(x)x)x2\frac{x^{2} \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} \cos{\left(x \right)} + \left(\log{\left(x \right)} - 1\right) \sin{\left(x \right)} \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x^{2}}

Gráfica
02468-8-6-4-2-1010-1010
Primera derivada [src]
          /    log(x)\   /  1    log(x)\    /    log(x)\       
cos(x)*sin|1 - ------| + |- -- + ------|*cos|1 - ------|*sin(x)
          \      x   /   |   2      2  |    \      x   /       
                         \  x      x   /                       
(log(x)x21x2)sin(x)cos(1log(x)x)+sin(1log(x)x)cos(x)\left(\frac{\log{\left(x \right)}}{x^{2}} - \frac{1}{x^{2}}\right) \sin{\left(x \right)} \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} + \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} \cos{\left(x \right)}
Segunda derivada [src]
                           /                                               2    /    log(x)\\                                                
                           |                                  (-1 + log(x)) *sin|1 - ------||                                                
                           |                   /    log(x)\                     \      x   /|                                    /    log(x)\
                           |(-3 + 2*log(x))*cos|1 - ------| + ------------------------------|*sin(x)   2*(-1 + log(x))*cos(x)*cos|1 - ------|
            /    log(x)\   \                   \      x   /                 x               /                                    \      x   /
- sin(x)*sin|1 - ------| - ------------------------------------------------------------------------- + --------------------------------------
            \      x   /                                        3                                                         2                  
                                                               x                                                         x                   
sin(x)sin(1log(x)x)+2(log(x)1)cos(x)cos(1log(x)x)x2((2log(x)3)cos(1log(x)x)+(log(x)1)2sin(1log(x)x)x)sin(x)x3- \sin{\left(x \right)} \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} + \frac{2 \left(\log{\left(x \right)} - 1\right) \cos{\left(x \right)} \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x^{2}} - \frac{\left(\left(2 \log{\left(x \right)} - 3\right) \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} + \frac{\left(\log{\left(x \right)} - 1\right)^{2} \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x}\right) \sin{\left(x \right)}}{x^{3}}
Tercera derivada [src]
                           /                                                3    /    log(x)\                                      /    log(x)\\                                                                                                                              
                           |                                   (-1 + log(x)) *cos|1 - ------|   3*(-1 + log(x))*(-3 + 2*log(x))*sin|1 - ------||            /                                               2    /    log(x)\\                                                
                           |                    /    log(x)\                     \      x   /                                      \      x   /|            |                                  (-1 + log(x)) *sin|1 - ------||                                                
                           |(-11 + 6*log(x))*cos|1 - ------| - ------------------------------ + -----------------------------------------------|*sin(x)     |                   /    log(x)\                     \      x   /|                             /    log(x)\       
                           |                    \      x   /                  2                                        x                       |          3*|(-3 + 2*log(x))*cos|1 - ------| + ------------------------------|*cos(x)   3*(-1 + log(x))*cos|1 - ------|*sin(x)
            /    log(x)\   \                                                 x                                                                 /            \                   \      x   /                 x               /                             \      x   /       
- cos(x)*sin|1 - ------| + ---------------------------------------------------------------------------------------------------------------------------- - --------------------------------------------------------------------------- - --------------------------------------
            \      x   /                                                                 4                                                                                                      3                                                          2                  
                                                                                        x                                                                                                      x                                                          x                   
sin(1log(x)x)cos(x)3(log(x)1)sin(x)cos(1log(x)x)x23((2log(x)3)cos(1log(x)x)+(log(x)1)2sin(1log(x)x)x)cos(x)x3+((6log(x)11)cos(1log(x)x)+3(log(x)1)(2log(x)3)sin(1log(x)x)x(log(x)1)3cos(1log(x)x)x2)sin(x)x4- \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} \cos{\left(x \right)} - \frac{3 \left(\log{\left(x \right)} - 1\right) \sin{\left(x \right)} \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x^{2}} - \frac{3 \left(\left(2 \log{\left(x \right)} - 3\right) \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} + \frac{\left(\log{\left(x \right)} - 1\right)^{2} \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x}\right) \cos{\left(x \right)}}{x^{3}} + \frac{\left(\left(6 \log{\left(x \right)} - 11\right) \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)} + \frac{3 \left(\log{\left(x \right)} - 1\right) \left(2 \log{\left(x \right)} - 3\right) \sin{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x} - \frac{\left(\log{\left(x \right)} - 1\right)^{3} \cos{\left(1 - \frac{\log{\left(x \right)}}{x} \right)}}{x^{2}}\right) \sin{\left(x \right)}}{x^{4}}
Gráfico
Derivada de y=sin*sin(1-lnx/x)