In: Advanced Math
Write the form of yp that is needed for method of undetermined coefficients. Use the annihilator method with the lowest order differential operator. DO NOT SOLVE for the coefficients. You must show the corresponding homogeneous solution and the differential operator you are applying to each side of the equation as part of your answer.
a. y′′ + 6y′ + 9y = 4cos x
b. y′′ + 7y′ +10y = 2e^6x + 3cos(5x)
c. y′′ + 9y′ + 20y = 5xe^4x