Heys I was wondering if anyone could guide me through this question:
Let a be a real number. Find the general solution of the differential equation.
y''' + y'' = a
You could then assume a particular solution of the form:
Where the natural number s is chosen to be the smallest value so that no term in the particular solution is a solution to the corresponding homogeneous equation. Hence, let:
and use the method of undetermined coefficients to determine A.