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y=e^sinx(x-1/cosx)

Derivada de y=e^sinx(x-1/cosx)

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

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Solución

Ha introducido [src]
 sin(x) /      1   \
E      *|x - ------|
        \    cos(x)/
esin(x)(x1cos(x))e^{\sin{\left(x \right)}} \left(x - \frac{1}{\cos{\left(x \right)}}\right)
E^sin(x)*(x - 1/cos(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)=(xcos(x)1)esin(x)f{\left(x \right)} = \left(x \cos{\left(x \right)} - 1\right) e^{\sin{\left(x \right)}} y g(x)=cos(x)g{\left(x \right)} = \cos{\left(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)=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)=xcos(x)1f{\left(x \right)} = x \cos{\left(x \right)} - 1; calculamos ddxf(x)\frac{d}{d x} f{\left(x \right)}:

      1. diferenciamos xcos(x)1x \cos{\left(x \right)} - 1 miembro por miembro:

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

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

          1. La derivada del coseno es igual a menos el seno:

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

          Como resultado de: xsin(x)+cos(x)- x \sin{\left(x \right)} + \cos{\left(x \right)}

        Como resultado de: xsin(x)+cos(x)- x \sin{\left(x \right)} + \cos{\left(x \right)}

      g(x)=esin(x)g{\left(x \right)} = e^{\sin{\left(x \right)}}; calculamos ddxg(x)\frac{d}{d x} g{\left(x \right)}:

      1. Sustituimos u=sin(x)u = \sin{\left(x \right)}.

      2. Derivado eue^{u} es.

      3. Luego se aplica una cadena de reglas. Multiplicamos por ddxsin(x)\frac{d}{d x} \sin{\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 la secuencia de reglas:

        esin(x)cos(x)e^{\sin{\left(x \right)}} \cos{\left(x \right)}

      Como resultado de: (xsin(x)+cos(x))esin(x)+(xcos(x)1)esin(x)cos(x)\left(- x \sin{\left(x \right)} + \cos{\left(x \right)}\right) e^{\sin{\left(x \right)}} + \left(x \cos{\left(x \right)} - 1\right) e^{\sin{\left(x \right)}} \cos{\left(x \right)}

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

    1. La derivada del coseno es igual a menos el seno:

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

    Ahora aplicamos la regla de la derivada de una divesión:

    (xcos(x)1)esin(x)sin(x)+((xsin(x)+cos(x))esin(x)+(xcos(x)1)esin(x)cos(x))cos(x)cos2(x)\frac{\left(x \cos{\left(x \right)} - 1\right) e^{\sin{\left(x \right)}} \sin{\left(x \right)} + \left(\left(- x \sin{\left(x \right)} + \cos{\left(x \right)}\right) e^{\sin{\left(x \right)}} + \left(x \cos{\left(x \right)} - 1\right) e^{\sin{\left(x \right)}} \cos{\left(x \right)}\right) \cos{\left(x \right)}}{\cos^{2}{\left(x \right)}}

  2. Simplificamos:

    (xcos(x)sin(x)cos2(x))esin(x)\left(x \cos{\left(x \right)} - \frac{\sin{\left(x \right)}}{\cos^{2}{\left(x \right)}}\right) e^{\sin{\left(x \right)}}


Respuesta:

(xcos(x)sin(x)cos2(x))esin(x)\left(x \cos{\left(x \right)} - \frac{\sin{\left(x \right)}}{\cos^{2}{\left(x \right)}}\right) e^{\sin{\left(x \right)}}

Gráfica
02468-8-6-4-2-1010-25002500
Primera derivada [src]
/     sin(x)\  sin(x)   /      1   \         sin(x)
|1 - -------|*e       + |x - ------|*cos(x)*e      
|       2   |           \    cos(x)/               
\    cos (x)/                                      
(x1cos(x))esin(x)cos(x)+(sin(x)cos2(x)+1)esin(x)\left(x - \frac{1}{\cos{\left(x \right)}}\right) e^{\sin{\left(x \right)}} \cos{\left(x \right)} + \left(- \frac{\sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} + 1\right) e^{\sin{\left(x \right)}}
Segunda derivada [src]
 /         2                                                                 \        
 |    2*sin (x)                                                              |        
 |1 + ---------                                                              |        
 |        2                                                                  |        
 |     cos (x)    /      1   \ /     2            \     /      sin(x)\       |  sin(x)
-|------------- + |x - ------|*\- cos (x) + sin(x)/ + 2*|-1 + -------|*cos(x)|*e      
 |    cos(x)      \    cos(x)/                          |        2   |       |        
 \                                                      \     cos (x)/       /        
((x1cos(x))(sin(x)cos2(x))+2(sin(x)cos2(x)1)cos(x)+2sin2(x)cos2(x)+1cos(x))esin(x)- \left(\left(x - \frac{1}{\cos{\left(x \right)}}\right) \left(\sin{\left(x \right)} - \cos^{2}{\left(x \right)}\right) + 2 \left(\frac{\sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} - 1\right) \cos{\left(x \right)} + \frac{\frac{2 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} + 1}{\cos{\left(x \right)}}\right) e^{\sin{\left(x \right)}}
Tercera derivada [src]
/                                                         /         2   \                                                      \        
|                                                         |    6*sin (x)|                                                      |        
|                                                         |5 + ---------|*sin(x)                                               |        
|          2                                              |        2    |                                                      |        
|     6*sin (x)     /      sin(x)\ /     2            \   \     cos (x) /          /      1   \ /       2              \       |  sin(x)
|-3 - --------- + 3*|-1 + -------|*\- cos (x) + sin(x)/ - ---------------------- - |x - ------|*\1 - cos (x) + 3*sin(x)/*cos(x)|*e      
|         2         |        2   |                                  2              \    cos(x)/                                |        
\      cos (x)      \     cos (x)/                               cos (x)                                                       /        
((x1cos(x))(3sin(x)cos2(x)+1)cos(x)+3(sin(x)cos2(x)1)(sin(x)cos2(x))(6sin2(x)cos2(x)+5)sin(x)cos2(x)6sin2(x)cos2(x)3)esin(x)\left(- \left(x - \frac{1}{\cos{\left(x \right)}}\right) \left(3 \sin{\left(x \right)} - \cos^{2}{\left(x \right)} + 1\right) \cos{\left(x \right)} + 3 \left(\frac{\sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos^{2}{\left(x \right)}\right) - \frac{\left(\frac{6 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} + 5\right) \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{6 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} - 3\right) e^{\sin{\left(x \right)}}
Gráfico
Derivada de y=e^sinx(x-1/cosx)