Esercizi:

y''-y = e^x

y''+3y'+2 y = 3

y'' +y'+2y = sen x

y''+2y'+2y = 2x+1

y''+2y'+y=e^-x

y''+4y'+3y=(x+2) e^-x

y''=senx·cosx

y''=1/x

xy''-y'-x²-1=0

y'=cosx(y+1)

y'senx + y cosx =1

y'arcsenx - = 0

xyy' = x²-2y²