7.) (DS +403) = 7 %3D m5 + 4m3 = O
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:7.) (DS +403) = 7
%3D
15+ 4m3
%3D

Transcribed Image Text:Particular Solution by Inspection
It is frequently easy to obtain a particular solution of a non-homogeneous equation
bo(x)-
d" y
d"-'y
dy
+ b,(x)y = R(x)
dx
+ b1 (x)-
+...+ bn-1(x)
dxn
drn-1
by inspection if R(x) is a constant. Say that R(x) = Ro and if b, # 0, then
Ro
Yp =
bn
is a solution of
d"y
bo(x);
d"-'y
+ b1 (x)-
+ bn-1(x);
dy
+ b, (x)y = Ro-
%3D
drn-1
dx
Suppose b, = 0 and let Dky the lowest ordered derivative, then
Roxk
Yp
k!bn-k
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