Sr Examen

Derivada de cot(x^tan(x))

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

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Solución

Ha introducido [src]
   / tan(x)\
cot\x      /
cot(xtan(x))\cot{\left(x^{\tan{\left(x \right)}} \right)}
cot(x^tan(x))
Solución detallada
  1. Hay varias formas de calcular esta derivada.

    Method #1

    1. Reescribimos las funciones para diferenciar:

      cot(xtan(x))=1tan(xtan(x))\cot{\left(x^{\tan{\left(x \right)}} \right)} = \frac{1}{\tan{\left(x^{\tan{\left(x \right)}} \right)}}

    2. Sustituimos u=tan(xtan(x))u = \tan{\left(x^{\tan{\left(x \right)}} \right)}.

    3. Según el principio, aplicamos: 1u\frac{1}{u} tenemos 1u2- \frac{1}{u^{2}}

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

      1. Reescribimos las funciones para diferenciar:

        tan(xtan(x))=sin(xtan(x))cos(xtan(x))\tan{\left(x^{\tan{\left(x \right)}} \right)} = \frac{\sin{\left(x^{\tan{\left(x \right)}} \right)}}{\cos{\left(x^{\tan{\left(x \right)}} \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(xtan(x))f{\left(x \right)} = \sin{\left(x^{\tan{\left(x \right)}} \right)} y g(x)=cos(xtan(x))g{\left(x \right)} = \cos{\left(x^{\tan{\left(x \right)}} \right)}.

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

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

        2. La derivada del seno es igual al coseno:

          ddusin(u)=cos(u)\frac{d}{d u} \sin{\left(u \right)} = \cos{\left(u \right)}

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

          1. No logro encontrar los pasos en la búsqueda de esta derivada.

            Perola derivada

            (log(tan(x))+1)tantan(x)(x)\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \tan^{\tan{\left(x \right)}}{\left(x \right)}

          Como resultado de la secuencia de reglas:

          (log(tan(x))+1)cos(xtan(x))tantan(x)(x)\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \cos{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)}

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

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

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

          dducos(u)=sin(u)\frac{d}{d u} \cos{\left(u \right)} = - \sin{\left(u \right)}

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

          1. No logro encontrar los pasos en la búsqueda de esta derivada.

            Perola derivada

            (log(tan(x))+1)tantan(x)(x)\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \tan^{\tan{\left(x \right)}}{\left(x \right)}

          Como resultado de la secuencia de reglas:

          (log(tan(x))+1)sin(xtan(x))tantan(x)(x)- \left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \sin{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)}

        Ahora aplicamos la regla de la derivada de una divesión:

        (log(tan(x))+1)sin2(xtan(x))tantan(x)(x)+(log(tan(x))+1)cos2(xtan(x))tantan(x)(x)cos2(xtan(x))\frac{\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \sin^{2}{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)} + \left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \cos^{2}{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)}}{\cos^{2}{\left(x^{\tan{\left(x \right)}} \right)}}

      Como resultado de la secuencia de reglas:

      (log(tan(x))+1)sin2(xtan(x))tantan(x)(x)+(log(tan(x))+1)cos2(xtan(x))tantan(x)(x)cos2(xtan(x))tan2(xtan(x))- \frac{\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \sin^{2}{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)} + \left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \cos^{2}{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)}}{\cos^{2}{\left(x^{\tan{\left(x \right)}} \right)} \tan^{2}{\left(x^{\tan{\left(x \right)}} \right)}}

    Method #2

    1. Reescribimos las funciones para diferenciar:

      cot(xtan(x))=cos(xtan(x))sin(xtan(x))\cot{\left(x^{\tan{\left(x \right)}} \right)} = \frac{\cos{\left(x^{\tan{\left(x \right)}} \right)}}{\sin{\left(x^{\tan{\left(x \right)}} \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)=cos(xtan(x))f{\left(x \right)} = \cos{\left(x^{\tan{\left(x \right)}} \right)} y g(x)=sin(xtan(x))g{\left(x \right)} = \sin{\left(x^{\tan{\left(x \right)}} \right)}.

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

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

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

        dducos(u)=sin(u)\frac{d}{d u} \cos{\left(u \right)} = - \sin{\left(u \right)}

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

        1. No logro encontrar los pasos en la búsqueda de esta derivada.

          Perola derivada

          (log(tan(x))+1)tantan(x)(x)\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \tan^{\tan{\left(x \right)}}{\left(x \right)}

        Como resultado de la secuencia de reglas:

        (log(tan(x))+1)sin(xtan(x))tantan(x)(x)- \left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \sin{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)}

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

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

      2. La derivada del seno es igual al coseno:

        ddusin(u)=cos(u)\frac{d}{d u} \sin{\left(u \right)} = \cos{\left(u \right)}

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

        1. No logro encontrar los pasos en la búsqueda de esta derivada.

          Perola derivada

          (log(tan(x))+1)tantan(x)(x)\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \tan^{\tan{\left(x \right)}}{\left(x \right)}

        Como resultado de la secuencia de reglas:

        (log(tan(x))+1)cos(xtan(x))tantan(x)(x)\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \cos{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)}

      Ahora aplicamos la regla de la derivada de una divesión:

      (log(tan(x))+1)sin2(xtan(x))tantan(x)(x)(log(tan(x))+1)cos2(xtan(x))tantan(x)(x)sin2(xtan(x))\frac{- \left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \sin^{2}{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)} - \left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \cos^{2}{\left(x^{\tan{\left(x \right)}} \right)} \tan^{\tan{\left(x \right)}}{\left(x \right)}}{\sin^{2}{\left(x^{\tan{\left(x \right)}} \right)}}

  2. Simplificamos:

    (log(tan(x))+1)tantan(x)(x)sin2(xtan(x))- \frac{\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \tan^{\tan{\left(x \right)}}{\left(x \right)}}{\sin^{2}{\left(x^{\tan{\left(x \right)}} \right)}}


Respuesta:

(log(tan(x))+1)tantan(x)(x)sin2(xtan(x))- \frac{\left(\log{\left(\tan{\left(x \right)} \right)} + 1\right) \tan^{\tan{\left(x \right)}}{\left(x \right)}}{\sin^{2}{\left(x^{\tan{\left(x \right)}} \right)}}

Gráfica
02468-8-6-4-2-1010-3e223e22
Primera derivada [src]
 tan(x) /        2/ tan(x)\\ /tan(x)   /       2   \       \
x      *\-1 - cot \x      //*|------ + \1 + tan (x)/*log(x)|
                             \  x                          /
xtan(x)((tan2(x)+1)log(x)+tan(x)x)(cot2(xtan(x))1)x^{\tan{\left(x \right)}} \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right) \left(- \cot^{2}{\left(x^{\tan{\left(x \right)}} \right)} - 1\right)
Segunda derivada [src]
                            /                                 2              /       2   \                                                                            2             \
 tan(x) /       2/ tan(x)\\ |  /tan(x)   /       2   \       \    tan(x)   2*\1 + tan (x)/     /       2   \                    tan(x) /tan(x)   /       2   \       \     / tan(x)\|
x      *\1 + cot \x      //*|- |------ + \1 + tan (x)/*log(x)|  + ------ - --------------- - 2*\1 + tan (x)/*log(x)*tan(x) + 2*x      *|------ + \1 + tan (x)/*log(x)| *cot\x      /|
                            |  \  x                          /       2            x                                                    \  x                          /              |
                            \                                       x                                                                                                               /
xtan(x)(cot2(xtan(x))+1)(2xtan(x)((tan2(x)+1)log(x)+tan(x)x)2cot(xtan(x))((tan2(x)+1)log(x)+tan(x)x)22(tan2(x)+1)log(x)tan(x)2(tan2(x)+1)x+tan(x)x2)x^{\tan{\left(x \right)}} \left(\cot^{2}{\left(x^{\tan{\left(x \right)}} \right)} + 1\right) \left(2 x^{\tan{\left(x \right)}} \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right)^{2} \cot{\left(x^{\tan{\left(x \right)}} \right)} - \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right)^{2} - 2 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} \tan{\left(x \right)} - \frac{2 \left(\tan^{2}{\left(x \right)} + 1\right)}{x} + \frac{\tan{\left(x \right)}}{x^{2}}\right)
Tercera derivada [src]
                            /                                 3                                     /             /       2   \                                \                             2            /       2   \     /       2   \                                                     3                                                                                             3                                                                3                                                          /             /       2   \                                \             \
 tan(x) /       2/ tan(x)\\ |  /tan(x)   /       2   \       \      /tan(x)   /       2   \       \ |  tan(x)   2*\1 + tan (x)/     /       2   \              |   2*tan(x)     /       2   \           3*\1 + tan (x)/   6*\1 + tan (x)/*tan(x)      2*tan(x) /tan(x)   /       2   \       \     2/ tan(x)\        2    /       2   \             2*tan(x) /tan(x)   /       2   \       \  /       2/ tan(x)\\      tan(x) /tan(x)   /       2   \       \     / tan(x)\      tan(x) /tan(x)   /       2   \       \ |  tan(x)   2*\1 + tan (x)/     /       2   \              |    / tan(x)\|
x      *\1 + cot \x      //*|- |------ + \1 + tan (x)/*log(x)|  - 3*|------ + \1 + tan (x)/*log(x)|*|- ------ + --------------- + 2*\1 + tan (x)/*log(x)*tan(x)| - -------- - 2*\1 + tan (x)/ *log(x) + --------------- - ---------------------- - 4*x        *|------ + \1 + tan (x)/*log(x)| *cot \x      / - 4*tan (x)*\1 + tan (x)/*log(x) - 2*x        *|------ + \1 + tan (x)/*log(x)| *\1 + cot \x      // + 6*x      *|------ + \1 + tan (x)/*log(x)| *cot\x      / + 6*x      *|------ + \1 + tan (x)/*log(x)|*|- ------ + --------------- + 2*\1 + tan (x)/*log(x)*tan(x)|*cot\x      /|
                            |  \  x                          /      \  x                          / |     2            x                                       |       3                                        2                   x                          \  x                          /                                                               \  x                          /                                  \  x                          /                           \  x                          / |     2            x                                       |             |
                            \                                                                       \    x                                                     /      x                                        x                                                                                                                                                                                                                                                                                                        \    x                                                     /             /
xtan(x)(cot2(xtan(x))+1)(2x2tan(x)((tan2(x)+1)log(x)+tan(x)x)3(cot2(xtan(x))+1)4x2tan(x)((tan2(x)+1)log(x)+tan(x)x)3cot2(xtan(x))+6xtan(x)((tan2(x)+1)log(x)+tan(x)x)3cot(xtan(x))+6xtan(x)((tan2(x)+1)log(x)+tan(x)x)(2(tan2(x)+1)log(x)tan(x)+2(tan2(x)+1)xtan(x)x2)cot(xtan(x))((tan2(x)+1)log(x)+tan(x)x)33((tan2(x)+1)log(x)+tan(x)x)(2(tan2(x)+1)log(x)tan(x)+2(tan2(x)+1)xtan(x)x2)2(tan2(x)+1)2log(x)4(tan2(x)+1)log(x)tan2(x)6(tan2(x)+1)tan(x)x+3(tan2(x)+1)x22tan(x)x3)x^{\tan{\left(x \right)}} \left(\cot^{2}{\left(x^{\tan{\left(x \right)}} \right)} + 1\right) \left(- 2 x^{2 \tan{\left(x \right)}} \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right)^{3} \left(\cot^{2}{\left(x^{\tan{\left(x \right)}} \right)} + 1\right) - 4 x^{2 \tan{\left(x \right)}} \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right)^{3} \cot^{2}{\left(x^{\tan{\left(x \right)}} \right)} + 6 x^{\tan{\left(x \right)}} \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right)^{3} \cot{\left(x^{\tan{\left(x \right)}} \right)} + 6 x^{\tan{\left(x \right)}} \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right) \left(2 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} \tan{\left(x \right)} + \frac{2 \left(\tan^{2}{\left(x \right)} + 1\right)}{x} - \frac{\tan{\left(x \right)}}{x^{2}}\right) \cot{\left(x^{\tan{\left(x \right)}} \right)} - \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right)^{3} - 3 \left(\left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} + \frac{\tan{\left(x \right)}}{x}\right) \left(2 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} \tan{\left(x \right)} + \frac{2 \left(\tan^{2}{\left(x \right)} + 1\right)}{x} - \frac{\tan{\left(x \right)}}{x^{2}}\right) - 2 \left(\tan^{2}{\left(x \right)} + 1\right)^{2} \log{\left(x \right)} - 4 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(x \right)} \tan^{2}{\left(x \right)} - \frac{6 \left(\tan^{2}{\left(x \right)} + 1\right) \tan{\left(x \right)}}{x} + \frac{3 \left(\tan^{2}{\left(x \right)} + 1\right)}{x^{2}} - \frac{2 \tan{\left(x \right)}}{x^{3}}\right)
Gráfico
Derivada de cot(x^tan(x))