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x^2/tan(x)

Derivada de x^2/tan(x)

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

Ha introducido [src]
   2  
  x   
------
tan(x)
x2tan(x)\frac{x^{2}}{\tan{\left(x \right)}}
x^2/tan(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)=x2f{\left(x \right)} = x^{2} y g(x)=tan(x)g{\left(x \right)} = \tan{\left(x \right)}.

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

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

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

    Ahora aplicamos la regla de la derivada de una divesión:

    x2(sin2(x)+cos2(x))cos2(x)+2xtan(x)tan2(x)\frac{- \frac{x^{2} \left(\sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)}\right)}{\cos^{2}{\left(x \right)}} + 2 x \tan{\left(x \right)}}{\tan^{2}{\left(x \right)}}

  2. Simplificamos:

    x(xsin2(x)+2tan(x))x \left(- \frac{x}{\sin^{2}{\left(x \right)}} + \frac{2}{\tan{\left(x \right)}}\right)


Respuesta:

x(xsin2(x)+2tan(x))x \left(- \frac{x}{\sin^{2}{\left(x \right)}} + \frac{2}{\tan{\left(x \right)}}\right)

Gráfica
02468-8-6-4-2-1010-100000100000
Primera derivada [src]
          2 /        2   \
 2*x     x *\-1 - tan (x)/
------ + -----------------
tan(x)           2        
              tan (x)     
x2(tan2(x)1)tan2(x)+2xtan(x)\frac{x^{2} \left(- \tan^{2}{\left(x \right)} - 1\right)}{\tan^{2}{\left(x \right)}} + \frac{2 x}{\tan{\left(x \right)}}
Segunda derivada [src]
  /                     /            2   \       /       2   \\
  |     2 /       2   \ |     1 + tan (x)|   2*x*\1 + tan (x)/|
2*|1 + x *\1 + tan (x)/*|-1 + -----------| - -----------------|
  |                     |          2     |         tan(x)     |
  \                     \       tan (x)  /                    /
---------------------------------------------------------------
                             tan(x)                            
2(x2(tan2(x)+1tan2(x)1)(tan2(x)+1)2x(tan2(x)+1)tan(x)+1)tan(x)\frac{2 \left(x^{2} \left(\frac{\tan^{2}{\left(x \right)} + 1}{\tan^{2}{\left(x \right)}} - 1\right) \left(\tan^{2}{\left(x \right)} + 1\right) - \frac{2 x \left(\tan^{2}{\left(x \right)} + 1\right)}{\tan{\left(x \right)}} + 1\right)}{\tan{\left(x \right)}}
Tercera derivada [src]
  /                                                                                                 /            2   \\
  |                                                                                   /       2   \ |     1 + tan (x)||
  |     /                               2                  3\                     6*x*\1 + tan (x)/*|-1 + -----------||
  |     |                  /       2   \      /       2   \ |     /       2   \                     |          2     ||
  |   2 |         2      5*\1 + tan (x)/    3*\1 + tan (x)/ |   3*\1 + tan (x)/                     \       tan (x)  /|
2*|- x *|2 + 2*tan (x) - ---------------- + ----------------| - --------------- + ------------------------------------|
  |     |                       2                  4        |          2                         tan(x)               |
  \     \                    tan (x)            tan (x)     /       tan (x)                                           /
2(x2(3(tan2(x)+1)3tan4(x)5(tan2(x)+1)2tan2(x)+2tan2(x)+2)+6x(tan2(x)+1tan2(x)1)(tan2(x)+1)tan(x)3(tan2(x)+1)tan2(x))2 \left(- x^{2} \left(\frac{3 \left(\tan^{2}{\left(x \right)} + 1\right)^{3}}{\tan^{4}{\left(x \right)}} - \frac{5 \left(\tan^{2}{\left(x \right)} + 1\right)^{2}}{\tan^{2}{\left(x \right)}} + 2 \tan^{2}{\left(x \right)} + 2\right) + \frac{6 x \left(\frac{\tan^{2}{\left(x \right)} + 1}{\tan^{2}{\left(x \right)}} - 1\right) \left(\tan^{2}{\left(x \right)} + 1\right)}{\tan{\left(x \right)}} - \frac{3 \left(\tan^{2}{\left(x \right)} + 1\right)}{\tan^{2}{\left(x \right)}}\right)
Gráfico
Derivada de x^2/tan(x)