3.Solve y''+4y'+3y=e^t,y(0)=0,y'(0)=0
by using the Laplace Transform.

詳解 (共 2 筆)

詳解提供者：吳仲璿

詳解提供者：柳橙汁

set L{y}=Y (s^2)Y+4(s)Y+3Y=1/(s-1) Y[(s^2)-4s+3]=1/(s-1) Y=1/(s-1)(s-1)(s-3)