Sr Examen

Otras calculadoras


y=3^sqrt(x)cos^3(tgx)

Derivada de y=3^sqrt(x)cos^3(tgx)

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

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
   ___             
 \/ x     3        
3     *cos (tan(x))
3xcos3(tan(x))3^{\sqrt{x}} \cos^{3}{\left(\tan{\left(x \right)} \right)}
3^(sqrt(x))*cos(tan(x))^3
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)=3xf{\left(x \right)} = 3^{\sqrt{x}}; calculamos ddxf(x)\frac{d}{d x} f{\left(x \right)}:

    1. Sustituimos u=xu = \sqrt{x}.

    2. ddu3u=3ulog(3)\frac{d}{d u} 3^{u} = 3^{u} \log{\left(3 \right)}

    3. Luego se aplica una cadena de reglas. Multiplicamos por ddxx\frac{d}{d x} \sqrt{x}:

      1. Según el principio, aplicamos: x\sqrt{x} tenemos 12x\frac{1}{2 \sqrt{x}}

      Como resultado de la secuencia de reglas:

      3xlog(3)2x\frac{3^{\sqrt{x}} \log{\left(3 \right)}}{2 \sqrt{x}}

    g(x)=cos3(tan(x))g{\left(x \right)} = \cos^{3}{\left(\tan{\left(x \right)} \right)}; calculamos ddxg(x)\frac{d}{d x} g{\left(x \right)}:

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

    2. Según el principio, aplicamos: u3u^{3} tenemos 3u23 u^{2}

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

      1. Sustituimos u=tan(x)u = \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 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:

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

      Como resultado de la secuencia de reglas:

      3(sin2(x)+cos2(x))sin(tan(x))cos2(tan(x))cos2(x)- \frac{3 \left(\sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)}\right) \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)}}{\cos^{2}{\left(x \right)}}

    Como resultado de: 33x(sin2(x)+cos2(x))sin(tan(x))cos2(tan(x))cos2(x)+3xlog(3)cos3(tan(x))2x- \frac{3 \cdot 3^{\sqrt{x}} \left(\sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)}\right) \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)}}{\cos^{2}{\left(x \right)}} + \frac{3^{\sqrt{x}} \log{\left(3 \right)} \cos^{3}{\left(\tan{\left(x \right)} \right)}}{2 \sqrt{x}}

  2. Simplificamos:

    33xsin(tan(x))cos2(tan(x))cos2(x)+3xlog(3)cos3(tan(x))2x- \frac{3 \cdot 3^{\sqrt{x}} \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)}}{\cos^{2}{\left(x \right)}} + \frac{3^{\sqrt{x}} \log{\left(3 \right)} \cos^{3}{\left(\tan{\left(x \right)} \right)}}{2 \sqrt{x}}


Respuesta:

33xsin(tan(x))cos2(tan(x))cos2(x)+3xlog(3)cos3(tan(x))2x- \frac{3 \cdot 3^{\sqrt{x}} \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)}}{\cos^{2}{\left(x \right)}} + \frac{3^{\sqrt{x}} \log{\left(3 \right)} \cos^{3}{\left(\tan{\left(x \right)} \right)}}{2 \sqrt{x}}

Gráfica
02468-8-6-4-2-1010-100005000
Primera derivada [src]
   ___                                                                      
 \/ x     3                       ___                                       
3     *cos (tan(x))*log(3)      \/ x     2         /       2   \            
-------------------------- - 3*3     *cos (tan(x))*\1 + tan (x)/*sin(tan(x))
             ___                                                            
         2*\/ x                                                             
33x(tan2(x)+1)sin(tan(x))cos2(tan(x))+3xlog(3)cos3(tan(x))2x- 3 \cdot 3^{\sqrt{x}} \left(\tan^{2}{\left(x \right)} + 1\right) \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)} + \frac{3^{\sqrt{x}} \log{\left(3 \right)} \cos^{3}{\left(\tan{\left(x \right)} \right)}}{2 \sqrt{x}}
Segunda derivada [src]
       /                                                                                                                      2         /   1     log(3)\                                                        \            
       |                                                                                                                   cos (tan(x))*|- ---- + ------|*log(3)                                                 |            
   ___ |                                                                                                                                |   3/2     x   |            /       2   \                               |            
 \/ x  |    /       2   \ /   2         /       2   \        2         /       2   \                                   \                \  x            /          3*\1 + tan (x)/*cos(tan(x))*log(3)*sin(tan(x))|            
3     *|- 3*\1 + tan (x)/*\cos (tan(x))*\1 + tan (x)/ - 2*sin (tan(x))*\1 + tan (x)/ + 2*cos(tan(x))*sin(tan(x))*tan(x)/ + ------------------------------------- - ----------------------------------------------|*cos(tan(x))
       |                                                                                                                                     4                                           ___                     |            
       \                                                                                                                                                                               \/ x                      /            
3x((log(3)x1x32)log(3)cos2(tan(x))43(tan2(x)+1)(2(tan2(x)+1)sin2(tan(x))+(tan2(x)+1)cos2(tan(x))+2sin(tan(x))cos(tan(x))tan(x))3(tan2(x)+1)log(3)sin(tan(x))cos(tan(x))x)cos(tan(x))3^{\sqrt{x}} \left(\frac{\left(\frac{\log{\left(3 \right)}}{x} - \frac{1}{x^{\frac{3}{2}}}\right) \log{\left(3 \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)}}{4} - 3 \left(\tan^{2}{\left(x \right)} + 1\right) \left(- 2 \left(\tan^{2}{\left(x \right)} + 1\right) \sin^{2}{\left(\tan{\left(x \right)} \right)} + \left(\tan^{2}{\left(x \right)} + 1\right) \cos^{2}{\left(\tan{\left(x \right)} \right)} + 2 \sin{\left(\tan{\left(x \right)} \right)} \cos{\left(\tan{\left(x \right)} \right)} \tan{\left(x \right)}\right) - \frac{3 \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(3 \right)} \sin{\left(\tan{\left(x \right)} \right)} \cos{\left(\tan{\left(x \right)} \right)}}{\sqrt{x}}\right) \cos{\left(\tan{\left(x \right)} \right)}
Tercera derivada [src]
       /                                                                                                                                                                                                                                                                                      /          2              \                                                                                                                                                                                                               \
       |                                                                                                                                                                                                                                                                            3         | 3     log (3)   3*log(3)|                                                                                                                                                   2         /       2   \ /   1     log(3)\                   |
       |                                                                                                                                                                                                                                                                         cos (tan(x))*|---- + ------- - --------|*log(3)                                                                                                                                       9*cos (tan(x))*\1 + tan (x)/*|- ---- + ------|*log(3)*sin(tan(x))|
   ___ |                  /               2                               2                                                                                                                                                                                                  \                | 5/2      3/2        2   |            /       2   \ /   2         /       2   \        2         /       2   \                                   \                                                   |   3/2     x   |                   |
 \/ x  |    /       2   \ |  /       2   \     3             /       2   \     2                            2         /       2   \                    2            2                       3         /       2   \                2         /       2   \                   |                \x        x          x    /          9*\1 + tan (x)/*\cos (tan(x))*\1 + tan (x)/ - 2*sin (tan(x))*\1 + tan (x)/ + 2*cos(tan(x))*sin(tan(x))*tan(x)/*cos(tan(x))*log(3)                                \  x            /                   |
3     *|- 3*\1 + tan (x)/*\2*\1 + tan (x)/ *sin (tan(x)) - 7*\1 + tan (x)/ *cos (tan(x))*sin(tan(x)) + 2*cos (tan(x))*\1 + tan (x)/*sin(tan(x)) + 4*cos (tan(x))*tan (x)*sin(tan(x)) + 6*cos (tan(x))*\1 + tan (x)/*tan(x) - 12*sin (tan(x))*\1 + tan (x)/*cos(tan(x))*tan(x)/ + ----------------------------------------------- - --------------------------------------------------------------------------------------------------------------------------------- - -----------------------------------------------------------------|
       |                                                                                                                                                                                                                                                                                                8                                                                                           ___                                                                                                4                                |
       \                                                                                                                                                                                                                                                                                                                                                                                        2*\/ x                                                                                                                                  /
3x(9(log(3)x1x32)(tan2(x)+1)log(3)sin(tan(x))cos2(tan(x))43(tan2(x)+1)(2(tan2(x)+1)2sin3(tan(x))7(tan2(x)+1)2sin(tan(x))cos2(tan(x))12(tan2(x)+1)sin2(tan(x))cos(tan(x))tan(x)+2(tan2(x)+1)sin(tan(x))cos2(tan(x))+6(tan2(x)+1)cos3(tan(x))tan(x)+4sin(tan(x))cos2(tan(x))tan2(x))+(3log(3)x2+log(3)2x32+3x52)log(3)cos3(tan(x))89(tan2(x)+1)(2(tan2(x)+1)sin2(tan(x))+(tan2(x)+1)cos2(tan(x))+2sin(tan(x))cos(tan(x))tan(x))log(3)cos(tan(x))2x)3^{\sqrt{x}} \left(- \frac{9 \left(\frac{\log{\left(3 \right)}}{x} - \frac{1}{x^{\frac{3}{2}}}\right) \left(\tan^{2}{\left(x \right)} + 1\right) \log{\left(3 \right)} \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)}}{4} - 3 \left(\tan^{2}{\left(x \right)} + 1\right) \left(2 \left(\tan^{2}{\left(x \right)} + 1\right)^{2} \sin^{3}{\left(\tan{\left(x \right)} \right)} - 7 \left(\tan^{2}{\left(x \right)} + 1\right)^{2} \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)} - 12 \left(\tan^{2}{\left(x \right)} + 1\right) \sin^{2}{\left(\tan{\left(x \right)} \right)} \cos{\left(\tan{\left(x \right)} \right)} \tan{\left(x \right)} + 2 \left(\tan^{2}{\left(x \right)} + 1\right) \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)} + 6 \left(\tan^{2}{\left(x \right)} + 1\right) \cos^{3}{\left(\tan{\left(x \right)} \right)} \tan{\left(x \right)} + 4 \sin{\left(\tan{\left(x \right)} \right)} \cos^{2}{\left(\tan{\left(x \right)} \right)} \tan^{2}{\left(x \right)}\right) + \frac{\left(- \frac{3 \log{\left(3 \right)}}{x^{2}} + \frac{\log{\left(3 \right)}^{2}}{x^{\frac{3}{2}}} + \frac{3}{x^{\frac{5}{2}}}\right) \log{\left(3 \right)} \cos^{3}{\left(\tan{\left(x \right)} \right)}}{8} - \frac{9 \left(\tan^{2}{\left(x \right)} + 1\right) \left(- 2 \left(\tan^{2}{\left(x \right)} + 1\right) \sin^{2}{\left(\tan{\left(x \right)} \right)} + \left(\tan^{2}{\left(x \right)} + 1\right) \cos^{2}{\left(\tan{\left(x \right)} \right)} + 2 \sin{\left(\tan{\left(x \right)} \right)} \cos{\left(\tan{\left(x \right)} \right)} \tan{\left(x \right)}\right) \log{\left(3 \right)} \cos{\left(\tan{\left(x \right)} \right)}}{2 \sqrt{x}}\right)
Gráfico
Derivada de y=3^sqrt(x)cos^3(tgx)