Sr Examen

Ecuación diferencial y'''+3y''+3y'+y=sin(x)

El profesor se sorprenderá mucho al ver tu solución correcta😉

v

Para el problema de Cauchy:

y() =
y'() =
y''() =
y'''() =
y''''() =

Gráfico:

interior superior

Solución

Ha introducido [src]
                 2           3                      
  d             d           d                       
3*--(y(x)) + 3*---(y(x)) + ---(y(x)) + y(x) = sin(x)
  dx             2           3                      
               dx          dx                       
$$y{\left(x \right)} + 3 \frac{d}{d x} y{\left(x \right)} + 3 \frac{d^{2}}{d x^{2}} y{\left(x \right)} + \frac{d^{3}}{d x^{3}} y{\left(x \right)} = \sin{\left(x \right)}$$
y + 3*y' + 3*y'' + y''' = sin(x)
Respuesta [src]
         cos(x)   sin(x)                         -x
y(x) = - ------ - ------ + (C1 + x*(C2 + C3*x))*e  
           4        4                              
$$y{\left(x \right)} = \left(C_{1} + x \left(C_{2} + C_{3} x\right)\right) e^{- x} - \frac{\sin{\left(x \right)}}{4} - \frac{\cos{\left(x \right)}}{4}$$
Clasificación
nth linear constant coeff undetermined coefficients
nth linear constant coeff variation of parameters
nth linear constant coeff variation of parameters Integral