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y=(sinx)/(e^x*cos*x)

Derivada de y=(sinx)/(e^x*cos*x)

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

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Solución

Ha introducido [src]
  sin(x) 
---------
 x       
E *cos(x)
sin(x)excos(x)\frac{\sin{\left(x \right)}}{e^{x} \cos{\left(x \right)}}
sin(x)/((E^x*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)=sin(x)f{\left(x \right)} = \sin{\left(x \right)} y g(x)=excos(x)g{\left(x \right)} = e^{x} \cos{\left(x \right)}.

    Para calcular 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)}

    Para calcular ddxg(x)\frac{d}{d x} g{\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)=cos(x)f{\left(x \right)} = \cos{\left(x \right)}; calculamos ddxf(x)\frac{d}{d x} f{\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)}

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

      1. Derivado exe^{x} es.

      Como resultado de: exsin(x)+excos(x)- e^{x} \sin{\left(x \right)} + e^{x} \cos{\left(x \right)}

    Ahora aplicamos la regla de la derivada de una divesión:

    ((exsin(x)+excos(x))sin(x)+excos2(x))e2xcos2(x)\frac{\left(- \left(- e^{x} \sin{\left(x \right)} + e^{x} \cos{\left(x \right)}\right) \sin{\left(x \right)} + e^{x} \cos^{2}{\left(x \right)}\right) e^{- 2 x}}{\cos^{2}{\left(x \right)}}

  2. Simplificamos:

    (tan(x)+1cos2(x))ex\left(- \tan{\left(x \right)} + \frac{1}{\cos^{2}{\left(x \right)}}\right) e^{- x}


Respuesta:

(tan(x)+1cos2(x))ex\left(- \tan{\left(x \right)} + \frac{1}{\cos^{2}{\left(x \right)}}\right) e^{- x}

Gráfica
02468-8-6-4-2-1010-500000500000
Primera derivada [src]
  -x            / x                  x\  -2*x       
 e              \e *sin(x) - cos(x)*e /*e    *sin(x)
------*cos(x) + ------------------------------------
cos(x)                           2                  
                              cos (x)               
excos(x)cos(x)+(exsin(x)excos(x))e2xsin(x)cos2(x)\frac{e^{- x}}{\cos{\left(x \right)}} \cos{\left(x \right)} + \frac{\left(e^{x} \sin{\left(x \right)} - e^{x} \cos{\left(x \right)}\right) e^{- 2 x} \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}}
Segunda derivada [src]
/            //     sin(x)\                      (-cos(x) + sin(x))*sin(x)                  \                \    
|            ||-1 + ------|*(-cos(x) + sin(x)) + ------------------------- + cos(x) + sin(x)|*sin(x)         |    
|            \\     cos(x)/                                cos(x)                           /                |  -x
|-2*cos(x) + --------------------------------------------------------------------------------------- + sin(x)|*e  
\                                                     cos(x)                                                 /    
------------------------------------------------------------------------------------------------------------------
                                                      cos(x)                                                      
(((sin(x)cos(x)1)(sin(x)cos(x))+(sin(x)cos(x))sin(x)cos(x)+sin(x)+cos(x))sin(x)cos(x)+sin(x)2cos(x))excos(x)\frac{\left(\frac{\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) + \frac{\left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \sin{\left(x \right)} + \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) e^{- x}}{\cos{\left(x \right)}}
Tercera derivada [src]
/                                                                                          /                                                                                                                                                                 /       2            \                                                                         \                                     \    
|                                                                                          |                                                                                                                                                                 |    sin (x)   sin(x)|                                                                         |                                     |    
|                                                                                          |                                                  /     sin(x)\                                                      /     sin(x)\          2*(-cos(x) + sin(x))*|1 + ------- - ------|                                  /     sin(x)\                          |                                     |    
|                                                                                          |                                           2      |-1 + ------|*(-cos(x) + sin(x))                                 2*|-1 + ------|*sin(x)                        |       2      cos(x)|        2                         |-1 + ------|*(-cos(x) + sin(x))*sin(x)|                                     |    
|                                                                                          |    4*sin(x)   3*(-cos(x) + sin(x))   6*sin (x)   \     cos(x)/                      4*(-cos(x) + sin(x))*sin(x)     \     cos(x)/                               \    cos (x)         /   3*sin (x)*(-cos(x) + sin(x))   \     cos(x)/                          |                                     |    
|       //     sin(x)\                      (-cos(x) + sin(x))*sin(x)                  \   |2 - -------- + -------------------- + --------- - -------------------------------- - --------------------------- + ---------------------- + ------------------------------------------- + ---------------------------- + ---------------------------------------|*sin(x)                              |    
|     3*||-1 + ------|*(-cos(x) + sin(x)) + ------------------------- + cos(x) + sin(x)|   |     cos(x)           cos(x)              2                    cos(x)                             2                        cos(x)                              cos(x)                                  3                                    2                   |                                     |    
|       \\     cos(x)/                                cos(x)                           /   \                                       cos (x)                                                 cos (x)                                                                                              cos (x)                              cos (x)                /          3*(-cos(x) + sin(x))*sin(x)|  -x
|-1 + ---------------------------------------------------------------------------------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - ---------------------------|*e  
|                                           cos(x)                                                                                                                                                                           cos(x)                                                                                                                                                 2             |    
\                                                                                                                                                                                                                                                                                                                                                                                cos (x)          /    
(3(sin(x)cos(x))sin(x)cos2(x)+3((sin(x)cos(x)1)(sin(x)cos(x))+(sin(x)cos(x))sin(x)cos(x)+sin(x)+cos(x))cos(x)+((sin(x)cos(x)1)(sin(x)cos(x))sin(x)cos2(x)(sin(x)cos(x)1)(sin(x)cos(x))cos(x)+2(sin(x)cos(x)1)sin(x)cos(x)+2(sin(x)cos(x))(sin2(x)cos2(x)sin(x)cos(x)+1)cos(x)+3(sin(x)cos(x))sin2(x)cos3(x)4(sin(x)cos(x))sin(x)cos2(x)+3(sin(x)cos(x))cos(x)+6sin2(x)cos2(x)4sin(x)cos(x)+2)sin(x)cos(x)1)ex\left(- \frac{3 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} + \frac{3 \left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) + \frac{\left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \sin{\left(x \right)} + \cos{\left(x \right)}\right)}{\cos{\left(x \right)}} + \frac{\left(\frac{\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right)}{\cos{\left(x \right)}} + \frac{2 \left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \frac{2 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \left(\frac{\sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} + 1\right)}{\cos{\left(x \right)}} + \frac{3 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin^{2}{\left(x \right)}}{\cos^{3}{\left(x \right)}} - \frac{4 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} + \frac{3 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right)}{\cos{\left(x \right)}} + \frac{6 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{4 \sin{\left(x \right)}}{\cos{\left(x \right)}} + 2\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) e^{- x}
Gráfico
Derivada de y=(sinx)/(e^x*cos*x)