Sr Examen

Otras calculadoras


y=ln*sinx/sqrtx-1

Derivada de y=ln*sinx/sqrtx-1

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

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
log(x)*sin(x)    
------------- - 1
      ___        
    \/ x         
1+log(x)sin(x)x-1 + \frac{\log{\left(x \right)} \sin{\left(x \right)}}{\sqrt{x}}
(log(x)*sin(x))/sqrt(x) - 1
Solución detallada
  1. diferenciamos 1+log(x)sin(x)x-1 + \frac{\log{\left(x \right)} \sin{\left(x \right)}}{\sqrt{x}} miembro por miembro:

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

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

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

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

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

      1. Según el principio, aplicamos: x\sqrt{x} tenemos 12x\frac{1}{2 \sqrt{x}}

      Ahora aplicamos la regla de la derivada de una divesión:

      x(log(x)cos(x)+sin(x)x)log(x)sin(x)2xx\frac{\sqrt{x} \left(\log{\left(x \right)} \cos{\left(x \right)} + \frac{\sin{\left(x \right)}}{x}\right) - \frac{\log{\left(x \right)} \sin{\left(x \right)}}{2 \sqrt{x}}}{x}

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

    Como resultado de: x(log(x)cos(x)+sin(x)x)log(x)sin(x)2xx\frac{\sqrt{x} \left(\log{\left(x \right)} \cos{\left(x \right)} + \frac{\sin{\left(x \right)}}{x}\right) - \frac{\log{\left(x \right)} \sin{\left(x \right)}}{2 \sqrt{x}}}{x}

  2. Simplificamos:

    xlog(x)cos(x)log(x)sin(x)2+sin(x)x32\frac{x \log{\left(x \right)} \cos{\left(x \right)} - \frac{\log{\left(x \right)} \sin{\left(x \right)}}{2} + \sin{\left(x \right)}}{x^{\frac{3}{2}}}


Respuesta:

xlog(x)cos(x)log(x)sin(x)2+sin(x)x32\frac{x \log{\left(x \right)} \cos{\left(x \right)} - \frac{\log{\left(x \right)} \sin{\left(x \right)}}{2} + \sin{\left(x \right)}}{x^{\frac{3}{2}}}

Gráfica
02468-8-6-4-2-10102.5-2.5
Primera derivada [src]
sin(x)                                
------ + cos(x)*log(x)                
  x                      log(x)*sin(x)
---------------------- - -------------
          ___                   3/2   
        \/ x                 2*x      
log(x)cos(x)+sin(x)xxlog(x)sin(x)2x32\frac{\log{\left(x \right)} \cos{\left(x \right)} + \frac{\sin{\left(x \right)}}{x}}{\sqrt{x}} - \frac{\log{\left(x \right)} \sin{\left(x \right)}}{2 x^{\frac{3}{2}}}
Segunda derivada [src]
                                       sin(x)                                                  
                                       ------ + cos(x)*log(x)                                  
                 2*cos(x)   3*sin(x)     x                      cos(x)*log(x)   3*log(x)*sin(x)
-log(x)*sin(x) + -------- - -------- - ---------------------- - ------------- + ---------------
                    x            2              2*x                  2*x                 2     
                              2*x                                                     4*x      
-----------------------------------------------------------------------------------------------
                                               ___                                             
                                             \/ x                                              
log(x)sin(x)log(x)cos(x)+sin(x)x2xlog(x)cos(x)2x+2cos(x)x+3log(x)sin(x)4x23sin(x)2x2x\frac{- \log{\left(x \right)} \sin{\left(x \right)} - \frac{\log{\left(x \right)} \cos{\left(x \right)} + \frac{\sin{\left(x \right)}}{x}}{2 x} - \frac{\log{\left(x \right)} \cos{\left(x \right)}}{2 x} + \frac{2 \cos{\left(x \right)}}{x} + \frac{3 \log{\left(x \right)} \sin{\left(x \right)}}{4 x^{2}} - \frac{3 \sin{\left(x \right)}}{2 x^{2}}}{\sqrt{x}}
Tercera derivada [src]
sin(x)                   2*cos(x)                                                                                                                                   
------ + log(x)*sin(x) - --------                                                      /sin(x)                \                                                     
   2                        x                                                        3*|------ + cos(x)*log(x)|                                                     
  x                                                 4*cos(x)   3*sin(x)   4*sin(x)     \  x                   /   log(x)*sin(x)   15*log(x)*sin(x)   3*cos(x)*log(x)
--------------------------------- - cos(x)*log(x) - -------- - -------- + -------- + -------------------------- + ------------- - ---------------- + ---------------
                x                                       2         x           3                    2                   2*x                 3                  2     
                                                       x                     x                  4*x                                     8*x                2*x      
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                 ___                                                                                
                                                                               \/ x                                                                                 
log(x)cos(x)+log(x)sin(x)2cos(x)x+sin(x)x2x+log(x)sin(x)2x3sin(x)x+3(log(x)cos(x)+sin(x)x)4x2+3log(x)cos(x)2x24cos(x)x215log(x)sin(x)8x3+4sin(x)x3x\frac{- \log{\left(x \right)} \cos{\left(x \right)} + \frac{\log{\left(x \right)} \sin{\left(x \right)} - \frac{2 \cos{\left(x \right)}}{x} + \frac{\sin{\left(x \right)}}{x^{2}}}{x} + \frac{\log{\left(x \right)} \sin{\left(x \right)}}{2 x} - \frac{3 \sin{\left(x \right)}}{x} + \frac{3 \left(\log{\left(x \right)} \cos{\left(x \right)} + \frac{\sin{\left(x \right)}}{x}\right)}{4 x^{2}} + \frac{3 \log{\left(x \right)} \cos{\left(x \right)}}{2 x^{2}} - \frac{4 \cos{\left(x \right)}}{x^{2}} - \frac{15 \log{\left(x \right)} \sin{\left(x \right)}}{8 x^{3}} + \frac{4 \sin{\left(x \right)}}{x^{3}}}{\sqrt{x}}
Gráfico
Derivada de y=ln*sinx/sqrtx-1