y+3y+28y=0.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
what is the characteristic equation for the following

Transcribed Image Text:y + 3y + 28y=0.
Expert Solution

Step 1: Given data
The given equation is .
This is a second order differential equation, since the highest order derivative in this equation is 2, i.e, the co-efficients of higher order derivatives (above 2) is zero.
Also, the co-efficient of the highest order derivative (y'') is 1. Hence, it is a linear differential equation.
The general form of a second order linear differential equation is . Since the function
in the given equation, it is also a homogeneous equation.
Finally, it can be seen that the functions P(x) and Q(x) are constants.
Thus, the given equation is a second order, linear, homogeneous differential equation with constant co-efficients.
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