Sr Examen

Otras calculadoras


(x-sinx)(x-pi)^2/x^2sinx

Derivada de (x-sinx)(x-pi)^2/x^2sinx

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

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
                     2       
(x - sin(x))*(x - pi)        
----------------------*sin(x)
           2                 
          x                  
(xπ)2(xsin(x))x2sin(x)\frac{\left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right)}{x^{2}} \sin{\left(x \right)}
(((x - sin(x))*(x - pi)^2)/x^2)*sin(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)=(xπ)2(xsin(x))sin(x)f{\left(x \right)} = \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right) \sin{\left(x \right)} y g(x)=x2g{\left(x \right)} = x^{2}.

    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)=(xπ)2f{\left(x \right)} = \left(x - \pi\right)^{2}; calculamos ddxf(x)\frac{d}{d x} f{\left(x \right)}:

      1. Sustituimos u=xπu = x - \pi.

      2. Según el principio, aplicamos: u2u^{2} tenemos 2u2 u

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

        1. diferenciamos xπx - \pi miembro por miembro:

          1. Según el principio, aplicamos: xx tenemos 11

          2. La derivada de una constante π- \pi es igual a cero.

          Como resultado de: 11

        Como resultado de la secuencia de reglas:

        2x2π2 x - 2 \pi

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

      1. diferenciamos xsin(x)x - \sin{\left(x \right)} miembro por miembro:

        1. Según el principio, aplicamos: xx tenemos 11

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

          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)}

          Entonces, como resultado: cos(x)- \cos{\left(x \right)}

        Como resultado de: 1cos(x)1 - \cos{\left(x \right)}

      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: (1cos(x))(xπ)2sin(x)+(xπ)2(xsin(x))cos(x)+(xsin(x))(2x2π)sin(x)\left(1 - \cos{\left(x \right)}\right) \left(x - \pi\right)^{2} \sin{\left(x \right)} + \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right) \cos{\left(x \right)} + \left(x - \sin{\left(x \right)}\right) \left(2 x - 2 \pi\right) \sin{\left(x \right)}

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

    1. Según el principio, aplicamos: x2x^{2} tenemos 2x2 x

    Ahora aplicamos la regla de la derivada de una divesión:

    x2((1cos(x))(xπ)2sin(x)+(xπ)2(xsin(x))cos(x)+(xsin(x))(2x2π)sin(x))2x(xπ)2(xsin(x))sin(x)x4\frac{x^{2} \left(\left(1 - \cos{\left(x \right)}\right) \left(x - \pi\right)^{2} \sin{\left(x \right)} + \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right) \cos{\left(x \right)} + \left(x - \sin{\left(x \right)}\right) \left(2 x - 2 \pi\right) \sin{\left(x \right)}\right) - 2 x \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right) \sin{\left(x \right)}}{x^{4}}

  2. Simplificamos:

    (xπ)(x3cos(x)+x2sin(x)x2sin(2x)πx2cos(x)+πxsin(x)+πxsin(2x)+πcos(2x)π)x3\frac{\left(x - \pi\right) \left(x^{3} \cos{\left(x \right)} + x^{2} \sin{\left(x \right)} - x^{2} \sin{\left(2 x \right)} - \pi x^{2} \cos{\left(x \right)} + \pi x \sin{\left(x \right)} + \pi x \sin{\left(2 x \right)} + \pi \cos{\left(2 x \right)} - \pi\right)}{x^{3}}


Respuesta:

(xπ)(x3cos(x)+x2sin(x)x2sin(2x)πx2cos(x)+πxsin(x)+πxsin(2x)+πcos(2x)π)x3\frac{\left(x - \pi\right) \left(x^{3} \cos{\left(x \right)} + x^{2} \sin{\left(x \right)} - x^{2} \sin{\left(2 x \right)} - \pi x^{2} \cos{\left(x \right)} + \pi x \sin{\left(x \right)} + \pi x \sin{\left(2 x \right)} + \pi \cos{\left(2 x \right)} - \pi\right)}{x^{3}}

Gráfica
02468-8-6-4-2-1010-5050
Primera derivada [src]
/        2                                                       2             \                  2                    
|(x - pi) *(1 - cos(x)) + (x - sin(x))*(-2*pi + 2*x)   2*(x - pi) *(x - sin(x))|          (x - pi) *(x - sin(x))*cos(x)
|--------------------------------------------------- - ------------------------|*sin(x) + -----------------------------
|                          2                                       3           |                         2             
\                         x                                       x            /                        x              
((1cos(x))(xπ)2+(xsin(x))(2x2π)x22(xπ)2(xsin(x))x3)sin(x)+(xπ)2(xsin(x))cos(x)x2\left(\frac{\left(1 - \cos{\left(x \right)}\right) \left(x - \pi\right)^{2} + \left(x - \sin{\left(x \right)}\right) \left(2 x - 2 \pi\right)}{x^{2}} - \frac{2 \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right)}{x^{3}}\right) \sin{\left(x \right)} + \frac{\left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right) \cos{\left(x \right)}}{x^{2}}
Segunda derivada [src]
/                                                                                                                                  2             \                                                                                                                                
|                          2                                     4*(x - pi)*(-2*x + 2*sin(x) + (-1 + cos(x))*(x - pi))   6*(x - pi) *(x - sin(x))|                  2                                  /                                           2*(x - pi)*(x - sin(x))\       
|-2*sin(x) + 2*x + (x - pi) *sin(x) - 4*(-1 + cos(x))*(x - pi) + ----------------------------------------------------- + ------------------------|*sin(x) - (x - pi) *(x - sin(x))*sin(x) - 2*(x - pi)*|-2*x + 2*sin(x) + (-1 + cos(x))*(x - pi) + -----------------------|*cos(x)
|                                                                                          x                                         2           |                                                     \                                                      x           /       
\                                                                                                                                   x            /                                                                                                                                
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                         2                                                                                                                                        
                                                                                                                                        x                                                                                                                                         
(xπ)2(xsin(x))sin(x)2(xπ)(2x+(xπ)(cos(x)1)+2sin(x)+2(xπ)(xsin(x))x)cos(x)+(2x+(xπ)2sin(x)4(xπ)(cos(x)1)2sin(x)+4(xπ)(2x+(xπ)(cos(x)1)+2sin(x))x+6(xπ)2(xsin(x))x2)sin(x)x2\frac{- \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right) \sin{\left(x \right)} - 2 \left(x - \pi\right) \left(- 2 x + \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) + 2 \sin{\left(x \right)} + \frac{2 \left(x - \pi\right) \left(x - \sin{\left(x \right)}\right)}{x}\right) \cos{\left(x \right)} + \left(2 x + \left(x - \pi\right)^{2} \sin{\left(x \right)} - 4 \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) - 2 \sin{\left(x \right)} + \frac{4 \left(x - \pi\right) \left(- 2 x + \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) + 2 \sin{\left(x \right)}\right)}{x} + \frac{6 \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right)}{x^{2}}\right) \sin{\left(x \right)}}{x^{2}}
Tercera derivada [src]
  /                                                         /                          2                                  \                                                                       2             \            /                                                                                                                                  2             \                                                                                                                                
  |                        2                              6*\-2*sin(x) + 2*x + (x - pi) *sin(x) - 4*(-1 + cos(x))*(x - pi)/   18*(x - pi)*(-2*x + 2*sin(x) + (-1 + cos(x))*(x - pi))   24*(x - pi) *(x - sin(x))|            |                          2                                     4*(x - pi)*(-2*x + 2*sin(x) + (-1 + cos(x))*(x - pi))   6*(x - pi) *(x - sin(x))|                  2                                  /                                           2*(x - pi)*(x - sin(x))\       
- |-6 + 6*cos(x) - (x - pi) *cos(x) - 6*(x - pi)*sin(x) + ----------------------------------------------------------------- + ------------------------------------------------------ + -------------------------|*sin(x) + 3*|-2*sin(x) + 2*x + (x - pi) *sin(x) - 4*(-1 + cos(x))*(x - pi) + ----------------------------------------------------- + ------------------------|*cos(x) - (x - pi) *(x - sin(x))*cos(x) + 3*(x - pi)*|-2*x + 2*sin(x) + (-1 + cos(x))*(x - pi) + -----------------------|*sin(x)
  |                                                                                       x                                                              2                                          3           |            |                                                                                          x                                         2           |                                                     \                                                      x           /       
  \                                                                                                                                                     x                                          x            /            \                                                                                                                                   x            /                                                                                                                                
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                                                                                                        2                                                                                                                                                                                                                                                      
                                                                                                                                                                                                                                                       x                                                                                                                                                                                                                                                       
(xπ)2(xsin(x))cos(x)+3(xπ)(2x+(xπ)(cos(x)1)+2sin(x)+2(xπ)(xsin(x))x)sin(x)+3(2x+(xπ)2sin(x)4(xπ)(cos(x)1)2sin(x)+4(xπ)(2x+(xπ)(cos(x)1)+2sin(x))x+6(xπ)2(xsin(x))x2)cos(x)((xπ)2cos(x)6(xπ)sin(x)+6cos(x)6+6(2x+(xπ)2sin(x)4(xπ)(cos(x)1)2sin(x))x+18(xπ)(2x+(xπ)(cos(x)1)+2sin(x))x2+24(xπ)2(xsin(x))x3)sin(x)x2\frac{- \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right) \cos{\left(x \right)} + 3 \left(x - \pi\right) \left(- 2 x + \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) + 2 \sin{\left(x \right)} + \frac{2 \left(x - \pi\right) \left(x - \sin{\left(x \right)}\right)}{x}\right) \sin{\left(x \right)} + 3 \left(2 x + \left(x - \pi\right)^{2} \sin{\left(x \right)} - 4 \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) - 2 \sin{\left(x \right)} + \frac{4 \left(x - \pi\right) \left(- 2 x + \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) + 2 \sin{\left(x \right)}\right)}{x} + \frac{6 \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right)}{x^{2}}\right) \cos{\left(x \right)} - \left(- \left(x - \pi\right)^{2} \cos{\left(x \right)} - 6 \left(x - \pi\right) \sin{\left(x \right)} + 6 \cos{\left(x \right)} - 6 + \frac{6 \left(2 x + \left(x - \pi\right)^{2} \sin{\left(x \right)} - 4 \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) - 2 \sin{\left(x \right)}\right)}{x} + \frac{18 \left(x - \pi\right) \left(- 2 x + \left(x - \pi\right) \left(\cos{\left(x \right)} - 1\right) + 2 \sin{\left(x \right)}\right)}{x^{2}} + \frac{24 \left(x - \pi\right)^{2} \left(x - \sin{\left(x \right)}\right)}{x^{3}}\right) \sin{\left(x \right)}}{x^{2}}
Gráfico
Derivada de (x-sinx)(x-pi)^2/x^2sinx