Answer:

Explanation:
The objective of this question is to solve:

Suppose the general solution is proportional to
for
is constant; Then:
Let's replace
into the above equation:
i.e.

To Replace:
with



Thus;
+
+
- 111
= 0

∴
In as much as
for any finite
; Then:

By Factorization:


However;
The root
yield;


The root
yield;

∴
The general solution is:

Using Euler's Identity ;


