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x*sin(x)*log(x)/log(exp)

Derivada de x*sin(x)*log(x)/log(exp)

Función f() - derivada -er orden en el punto
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Gráfico:

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Solución

Ha introducido [src]
x*sin(x)*log(x)
---------------
       / x\    
    log\e /    
xsin(x)log(x)log(ex)\frac{x \sin{\left(x \right)} \log{\left(x \right)}}{\log{\left(e^{x} \right)}}
((x*sin(x))*log(x))/log(exp(x))
Solución detallada
  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)=xlog(x)sin(x)f{\left(x \right)} = x \log{\left(x \right)} \sin{\left(x \right)} y g(x)=log(ex)g{\left(x \right)} = \log{\left(e^{x} \right)}.

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

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

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

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

      1. Según el principio, aplicamos: xx tenemos 11

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

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

      h(x)=sin(x)h{\left(x \right)} = \sin{\left(x \right)}; calculamos ddxh(x)\frac{d}{d x} h{\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)}

      Como resultado de: xlog(x)cos(x)+log(x)sin(x)+sin(x)x \log{\left(x \right)} \cos{\left(x \right)} + \log{\left(x \right)} \sin{\left(x \right)} + \sin{\left(x \right)}

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

    1. Sustituimos u=exu = e^{x}.

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

    3. Luego se aplica una cadena de reglas. Multiplicamos por ddxex\frac{d}{d x} e^{x}:

      1. Derivado exe^{x} es.

      Como resultado de la secuencia de reglas:

      11

    Ahora aplicamos la regla de la derivada de una divesión:

    xlog(x)sin(x)+(xlog(x)cos(x)+log(x)sin(x)+sin(x))log(ex)log(ex)2\frac{- x \log{\left(x \right)} \sin{\left(x \right)} + \left(x \log{\left(x \right)} \cos{\left(x \right)} + \log{\left(x \right)} \sin{\left(x \right)} + \sin{\left(x \right)}\right) \log{\left(e^{x} \right)}}{\log{\left(e^{x} \right)}^{2}}

  2. Simplificamos:

    log(x)cos(x)+sin(x)x\log{\left(x \right)} \cos{\left(x \right)} + \frac{\sin{\left(x \right)}}{x}


Respuesta:

log(x)cos(x)+sin(x)x\log{\left(x \right)} \cos{\left(x \right)} + \frac{\sin{\left(x \right)}}{x}

Gráfica
02468-8-6-4-2-10105-5
Primera derivada [src]
(x*cos(x) + sin(x))*log(x) + sin(x)   x*log(x)*sin(x)
----------------------------------- - ---------------
                 / x\                        2/ x\   
              log\e /                     log \e /   
xlog(x)sin(x)log(ex)2+(xcos(x)+sin(x))log(x)+sin(x)log(ex)- \frac{x \log{\left(x \right)} \sin{\left(x \right)}}{\log{\left(e^{x} \right)}^{2}} + \frac{\left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \log{\left(x \right)} + \sin{\left(x \right)}}{\log{\left(e^{x} \right)}}
Segunda derivada [src]
  sin(x)                                   2*((x*cos(x) + sin(x))*log(x) + sin(x))   2*(x*cos(x) + sin(x))   2*x*log(x)*sin(x)
- ------ - (-2*cos(x) + x*sin(x))*log(x) - --------------------------------------- + --------------------- + -----------------
    x                                                         / x\                             x                     2/ x\    
                                                           log\e /                                                log \e /    
------------------------------------------------------------------------------------------------------------------------------
                                                              / x\                                                            
                                                           log\e /                                                            
2xlog(x)sin(x)log(ex)2(xsin(x)2cos(x))log(x)2((xcos(x)+sin(x))log(x)+sin(x))log(ex)+2(xcos(x)+sin(x))xsin(x)xlog(ex)\frac{\frac{2 x \log{\left(x \right)} \sin{\left(x \right)}}{\log{\left(e^{x} \right)}^{2}} - \left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) \log{\left(x \right)} - \frac{2 \left(\left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \log{\left(x \right)} + \sin{\left(x \right)}\right)}{\log{\left(e^{x} \right)}} + \frac{2 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right)}{x} - \frac{\sin{\left(x \right)}}{x}}{\log{\left(e^{x} \right)}}
Tercera derivada [src]
                                                                                                /sin(x)                                   2*(x*cos(x) + sin(x))\                                                              
                                                                                              3*|------ + (-2*cos(x) + x*sin(x))*log(x) - ---------------------|                                                              
                                3*(-2*cos(x) + x*sin(x))   3*(x*cos(x) + sin(x))   2*sin(x)     \  x                                                x          /   6*((x*cos(x) + sin(x))*log(x) + sin(x))   6*x*log(x)*sin(x)
-(3*sin(x) + x*cos(x))*log(x) - ------------------------ - --------------------- + -------- + ------------------------------------------------------------------ + --------------------------------------- - -----------------
                                           x                          2                2                                      / x\                                                    2/ x\                          3/ x\    
                                                                     x                x                                    log\e /                                                 log \e /                       log \e /    
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                              / x\                                                                                                            
                                                                                                           log\e /                                                                                                            
6xlog(x)sin(x)log(ex)3(xcos(x)+3sin(x))log(x)+6((xcos(x)+sin(x))log(x)+sin(x))log(ex)2+3((xsin(x)2cos(x))log(x)2(xcos(x)+sin(x))x+sin(x)x)log(ex)3(xsin(x)2cos(x))x3(xcos(x)+sin(x))x2+2sin(x)x2log(ex)\frac{- \frac{6 x \log{\left(x \right)} \sin{\left(x \right)}}{\log{\left(e^{x} \right)}^{3}} - \left(x \cos{\left(x \right)} + 3 \sin{\left(x \right)}\right) \log{\left(x \right)} + \frac{6 \left(\left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \log{\left(x \right)} + \sin{\left(x \right)}\right)}{\log{\left(e^{x} \right)}^{2}} + \frac{3 \left(\left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) \log{\left(x \right)} - \frac{2 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right)}{x} + \frac{\sin{\left(x \right)}}{x}\right)}{\log{\left(e^{x} \right)}} - \frac{3 \left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right)}{x} - \frac{3 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right)}{x^{2}} + \frac{2 \sin{\left(x \right)}}{x^{2}}}{\log{\left(e^{x} \right)}}
Gráfico
Derivada de x*sin(x)*log(x)/log(exp)