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y=(x*sin(x))^8lnsin(x)

Derivada de y=(x*sin(x))^8lnsin(x)

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Ha introducido [src]
          8            
(x*sin(x)) *log(sin(x))
(xsin(x))8log(sin(x))\left(x \sin{\left(x \right)}\right)^{8} \log{\left(\sin{\left(x \right)} \right)}
(x*sin(x))^8*log(sin(x))
Solución detallada
  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)=(xsin(x))8f{\left(x \right)} = \left(x \sin{\left(x \right)}\right)^{8}; calculamos ddxf(x)\frac{d}{d x} f{\left(x \right)}:

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

    2. Según el principio, aplicamos: u8u^{8} tenemos 8u78 u^{7}

    3. Luego se aplica una cadena de reglas. Multiplicamos por ddxxsin(x)\frac{d}{d x} x \sin{\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)=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)=sin(x)g{\left(x \right)} = \sin{\left(x \right)}; calculamos ddxg(x)\frac{d}{d x} g{\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: xcos(x)+sin(x)x \cos{\left(x \right)} + \sin{\left(x \right)}

      Como resultado de la secuencia de reglas:

      8x7(xcos(x)+sin(x))sin7(x)8 x^{7} \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin^{7}{\left(x \right)}

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

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

    2. Derivado log(u)\log{\left(u \right)} es 1u\frac{1}{u}.

    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:

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

    Como resultado de: 8x7(xcos(x)+sin(x))log(sin(x))sin7(x)+x8sin8(x)cos(x)sin(x)8 x^{7} \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \log{\left(\sin{\left(x \right)} \right)} \sin^{7}{\left(x \right)} + \frac{x^{8} \sin^{8}{\left(x \right)} \cos{\left(x \right)}}{\sin{\left(x \right)}}

  2. Simplificamos:

    x7(xcos(x)+8(xcos(x)+sin(x))log(sin(x)))sin7(x)x^{7} \left(x \cos{\left(x \right)} + 8 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \log{\left(\sin{\left(x \right)} \right)}\right) \sin^{7}{\left(x \right)}


Respuesta:

x7(xcos(x)+8(xcos(x)+sin(x))log(sin(x)))sin7(x)x^{7} \left(x \cos{\left(x \right)} + 8 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \log{\left(\sin{\left(x \right)} \right)}\right) \sin^{7}{\left(x \right)}

Gráfica
02468-8-6-4-2-1010-1000000010000000
Primera derivada [src]
 8    8                                                           
x *sin (x)*cos(x)    7    7                                       
----------------- + x *sin (x)*(8*sin(x) + 8*x*cos(x))*log(sin(x))
      sin(x)                                                      
x7(8xcos(x)+8sin(x))log(sin(x))sin7(x)+x8sin8(x)cos(x)sin(x)x^{7} \left(8 x \cos{\left(x \right)} + 8 \sin{\left(x \right)}\right) \log{\left(\sin{\left(x \right)} \right)} \sin^{7}{\left(x \right)} + \frac{x^{8} \sin^{8}{\left(x \right)} \cos{\left(x \right)}}{\sin{\left(x \right)}}
Segunda derivada [src]
           /                                                                                                                                                      /       2   \                                  \
 6    6    |    /                       2                                                                                              \                2    2    |    cos (x)|                                  |
x *sin (x)*|- 8*\- 8*(x*cos(x) + sin(x))  + (x*cos(x) + sin(x))*sin(x) + x*(-2*cos(x) + x*sin(x))*sin(x) + x*(x*cos(x) + sin(x))*cos(x)/*log(sin(x)) - x *sin (x)*|1 + -------| + 16*x*(x*cos(x) + sin(x))*cos(x)|
           |                                                                                                                                                      |       2   |                                  |
           \                                                                                                                                                      \    sin (x)/                                  /
x6(x2(1+cos2(x)sin2(x))sin2(x)+16x(xcos(x)+sin(x))cos(x)8(x(xsin(x)2cos(x))sin(x)+x(xcos(x)+sin(x))cos(x)8(xcos(x)+sin(x))2+(xcos(x)+sin(x))sin(x))log(sin(x)))sin6(x)x^{6} \left(- x^{2} \left(1 + \frac{\cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right) \sin^{2}{\left(x \right)} + 16 x \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \cos{\left(x \right)} - 8 \left(x \left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) \sin{\left(x \right)} + x \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \cos{\left(x \right)} - 8 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right)^{2} + \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin{\left(x \right)}\right) \log{\left(\sin{\left(x \right)} \right)}\right) \sin^{6}{\left(x \right)}
Tercera derivada [src]
             /                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /       2   \                        /       2   \                    \
   5    5    |    /                        /     2       2    2         2    2                        \        2                                               2           2    2                             2    2                                 2                                2    2                                                 2             2                                                                                                                                      \                    /                       2                                                                                              \           3    2    |    cos (x)|              2    2    |    cos (x)|                    |
2*x *sin (x)*|- 4*\- 8*(x*cos(x) + sin(x))*\7*sin (x) - x *sin (x) + 7*x *cos (x) + 16*x*cos(x)*sin(x)/ + 6*sin (x)*(x*cos(x) + sin(x)) + 8*(x*cos(x) + sin(x)) *sin(x) + x *sin (x)*(3*sin(x) + x*cos(x)) - x *sin (x)*(x*cos(x) + sin(x)) + 6*x*sin (x)*(-2*cos(x) + x*sin(x)) + 6*x *cos (x)*(x*cos(x) + sin(x)) + 8*x*(x*cos(x) + sin(x)) *cos(x) + 6*x *(-2*cos(x) + x*sin(x))*cos(x)*sin(x) + 8*x*(-2*cos(x) + x*sin(x))*(x*cos(x) + sin(x))*sin(x) + 14*x*(x*cos(x) + sin(x))*cos(x)*sin(x)/*log(sin(x)) - 12*x*\- 8*(x*cos(x) + sin(x))  + (x*cos(x) + sin(x))*sin(x) + x*(-2*cos(x) + x*sin(x))*sin(x) + x*(x*cos(x) + sin(x))*cos(x)/*cos(x) + x *sin (x)*|1 + -------|*cos(x) - 12*x *sin (x)*|1 + -------|*(x*cos(x) + sin(x))|
             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |       2   |                        |       2   |                    |
             \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      \    sin (x)/                        \    sin (x)/                    /
2x5(x3(1+cos2(x)sin2(x))sin2(x)cos(x)12x2(1+cos2(x)sin2(x))(xcos(x)+sin(x))sin2(x)12x(x(xsin(x)2cos(x))sin(x)+x(xcos(x)+sin(x))cos(x)8(xcos(x)+sin(x))2+(xcos(x)+sin(x))sin(x))cos(x)4(6x2(xsin(x)2cos(x))sin(x)cos(x)x2(xcos(x)+sin(x))sin2(x)+6x2(xcos(x)+sin(x))cos2(x)+x2(xcos(x)+3sin(x))sin2(x)+8x(xsin(x)2cos(x))(xcos(x)+sin(x))sin(x)+6x(xsin(x)2cos(x))sin2(x)+8x(xcos(x)+sin(x))2cos(x)+14x(xcos(x)+sin(x))sin(x)cos(x)+8(xcos(x)+sin(x))2sin(x)8(xcos(x)+sin(x))(x2sin2(x)+7x2cos2(x)+16xsin(x)cos(x)+7sin2(x))+6(xcos(x)+sin(x))sin2(x))log(sin(x)))sin5(x)2 x^{5} \left(x^{3} \left(1 + \frac{\cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right) \sin^{2}{\left(x \right)} \cos{\left(x \right)} - 12 x^{2} \left(1 + \frac{\cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right) \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin^{2}{\left(x \right)} - 12 x \left(x \left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) \sin{\left(x \right)} + x \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \cos{\left(x \right)} - 8 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right)^{2} + \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin{\left(x \right)}\right) \cos{\left(x \right)} - 4 \left(6 x^{2} \left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) \sin{\left(x \right)} \cos{\left(x \right)} - x^{2} \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin^{2}{\left(x \right)} + 6 x^{2} \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \cos^{2}{\left(x \right)} + x^{2} \left(x \cos{\left(x \right)} + 3 \sin{\left(x \right)}\right) \sin^{2}{\left(x \right)} + 8 x \left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin{\left(x \right)} + 6 x \left(x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) \sin^{2}{\left(x \right)} + 8 x \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right)^{2} \cos{\left(x \right)} + 14 x \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin{\left(x \right)} \cos{\left(x \right)} + 8 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right)^{2} \sin{\left(x \right)} - 8 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \left(- x^{2} \sin^{2}{\left(x \right)} + 7 x^{2} \cos^{2}{\left(x \right)} + 16 x \sin{\left(x \right)} \cos{\left(x \right)} + 7 \sin^{2}{\left(x \right)}\right) + 6 \left(x \cos{\left(x \right)} + \sin{\left(x \right)}\right) \sin^{2}{\left(x \right)}\right) \log{\left(\sin{\left(x \right)} \right)}\right) \sin^{5}{\left(x \right)}
Gráfico
Derivada de y=(x*sin(x))^8lnsin(x)