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y=2^tgx(1/x)

Derivada de y=2^tgx(1/x)

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

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Solución

Ha introducido [src]
 tan(x)
2      
-------
   x   
2tan(x)x\frac{2^{\tan{\left(x \right)}}}{x}
2^tan(x)/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)=2tan(x)f{\left(x \right)} = 2^{\tan{\left(x \right)}} y g(x)=xg{\left(x \right)} = x.

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

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

    2. ddu2u=2ulog(2)\frac{d}{d u} 2^{u} = 2^{u} \log{\left(2 \right)}

    3. Luego se aplica una cadena de reglas. Multiplicamos por ddxtan(x)\frac{d}{d x} \tan{\left(x \right)}:

      1. Reescribimos las funciones para diferenciar:

        tan(x)=sin(x)cos(x)\tan{\left(x \right)} = \frac{\sin{\left(x \right)}}{\cos{\left(x \right)}}

      2. 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)=cos(x)g{\left(x \right)} = \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. 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:

        sin2(x)+cos2(x)cos2(x)\frac{\sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}}

      Como resultado de la secuencia de reglas:

      2tan(x)(sin2(x)+cos2(x))log(2)cos2(x)\frac{2^{\tan{\left(x \right)}} \left(\sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)}\right) \log{\left(2 \right)}}{\cos^{2}{\left(x \right)}}

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

    1. Según el principio, aplicamos: xx tenemos 11

    Ahora aplicamos la regla de la derivada de una divesión:

    2tan(x)x(sin2(x)+cos2(x))log(2)cos2(x)2tan(x)x2\frac{\frac{2^{\tan{\left(x \right)}} x \left(\sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)}\right) \log{\left(2 \right)}}{\cos^{2}{\left(x \right)}} - 2^{\tan{\left(x \right)}}}{x^{2}}

  2. Simplificamos:

    2tan(x)(xlog(2)cos2(x)1)x2\frac{2^{\tan{\left(x \right)}} \left(\frac{x \log{\left(2 \right)}}{\cos^{2}{\left(x \right)}} - 1\right)}{x^{2}}


Respuesta:

2tan(x)(xlog(2)cos2(x)1)x2\frac{2^{\tan{\left(x \right)}} \left(\frac{x \log{\left(2 \right)}}{\cos^{2}{\left(x \right)}} - 1\right)}{x^{2}}

Gráfica
02468-8-6-4-2-1010-5000000000050000000000
Primera derivada [src]
   tan(x)    tan(x) /       2   \       
  2         2      *\1 + tan (x)/*log(2)
- ------- + ----------------------------
      2                  x              
     x                                  
2tan(x)(tan2(x)+1)log(2)x2tan(x)x2\frac{2^{\tan{\left(x \right)}} \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)}}{x} - \frac{2^{\tan{\left(x \right)}}}{x^{2}}
Segunda derivada [src]
        /                                                                /       2   \       \
 tan(x) |2    /       2   \ /           /       2   \       \          2*\1 + tan (x)/*log(2)|
2      *|-- + \1 + tan (x)/*\2*tan(x) + \1 + tan (x)/*log(2)/*log(2) - ----------------------|
        | 2                                                                      x           |
        \x                                                                                   /
----------------------------------------------------------------------------------------------
                                              x                                               
2tan(x)(((tan2(x)+1)log(2)+2tan(x))(tan2(x)+1)log(2)2(tan2(x)+1)log(2)x+2x2)x\frac{2^{\tan{\left(x \right)}} \left(\left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)} + 2 \tan{\left(x \right)}\right) \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)} - \frac{2 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)}}{x} + \frac{2}{x^{2}}\right)}{x}
Tercera derivada [src]
        /                     /                             2                                        \            /       2   \            /       2   \ /           /       2   \       \       \
 tan(x) |  6    /       2   \ |         2      /       2   \     2        /       2   \              |          6*\1 + tan (x)/*log(2)   3*\1 + tan (x)/*\2*tan(x) + \1 + tan (x)/*log(2)/*log(2)|
2      *|- -- + \1 + tan (x)/*\2 + 6*tan (x) + \1 + tan (x)/ *log (2) + 6*\1 + tan (x)/*log(2)*tan(x)/*log(2) + ---------------------- - --------------------------------------------------------|
        |   3                                                                                                              2                                        x                            |
        \  x                                                                                                              x                                                                      /
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                x                                                                                                 
2tan(x)((tan2(x)+1)((tan2(x)+1)2log(2)2+6(tan2(x)+1)log(2)tan(x)+6tan2(x)+2)log(2)3((tan2(x)+1)log(2)+2tan(x))(tan2(x)+1)log(2)x+6(tan2(x)+1)log(2)x26x3)x\frac{2^{\tan{\left(x \right)}} \left(\left(\tan^{2}{\left(x \right)} + 1\right) \left(\left(\tan^{2}{\left(x \right)} + 1\right)^{2} \log{\left(2 \right)}^{2} + 6 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)} \tan{\left(x \right)} + 6 \tan^{2}{\left(x \right)} + 2\right) \log{\left(2 \right)} - \frac{3 \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)} + 2 \tan{\left(x \right)}\right) \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)}}{x} + \frac{6 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(2 \right)}}{x^{2}} - \frac{6}{x^{3}}\right)}{x}
Gráfico
Derivada de y=2^tgx(1/x)