Solve the initial value problem. Use the method of undetermined
coefficients when finding a particular solution. y'' + y = 8 sin t;
y(0) = 4, y' (0) = 2
Use the method of Undetermined Coefficients to find the solution
of the initial value value problem:
y'' + 8y' + 20y = 9cos(2t) - 18e-4t, y(0) = 5. y'(0)
= 0