# Question: differential equation solve by using the method of undetermined coefficients...

###### Question details

Differential Equation. Solve by using the method of undetermined coefficients:

a) y''+y'-12y = 9e^(-4t)

b) y''+4y=e^t, y(0)=0, y'(0)=0

Differential Equation. Solve by using the method of undetermined coefficients:

a) y''+y'-12y = 9e^(-4t)

b) y''+4y=e^t, y(0)=0, y'(0)=0