Ecuación diferencial y''''+5y''+4y=x*sin(2x)
El profesor se sorprenderá mucho al ver tu solución correcta😉
Solución
/ 2\
/ 19*x\ | x |
y(x) = C3*sin(x) + C4*cos(x) + |C1 - ----|*sin(2*x) + |C2 + --|*cos(2*x)
\ 144 / \ 24/
$$y{\left(x \right)} = C_{3} \sin{\left(x \right)} + C_{4} \cos{\left(x \right)} + \left(C_{1} - \frac{19 x}{144}\right) \sin{\left(2 x \right)} + \left(C_{2} + \frac{x^{2}}{24}\right) \cos{\left(2 x \right)}$$
Clasificación
nth linear constant coeff undetermined coefficients
nth linear constant coeff variation of parameters
nth linear constant coeff variation of parameters Integral