Show me the steps of determine red and it complete

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 64E
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Show me the steps of determine red and it complete

8.7.3
Example C
For the equation
Ay(x) = Dy(x),
(8.282)
it follows that
C
y(x + 1) – y(x) =
dx
dy(x)
(8.283)
This is a linear equation, with constant coefficients, and we will assume the
solution takes the form
y(x) = e"ª,
(8.284)
and, therefore, we find
dy(x)
y(x + 1) = e"(2+1) = e"e"ª,
re"*.
(8.285)
dx
Substitution of these results into the original equation and canceling the com-
mon factor e"", gives the transcendental equation
e" - r – 1 = 0.
(8.286)
404
Difference Equations
Note that this equation has solutions in terms of the Lambert W-function. In
general, an infinite set of roots exist and if they are denoted by {rm}mE,
|m=∞
then the solution takes the form
Cy(2) = E ame"mz,
(8.287)
rmx
m=0
where {am} are constants. Inspection of equation (8.286) shows that r
a solution, thus one solution to Ay(x) = Dy(x) is y(x) = A, where A is an
arbitrary constant.
= 0 is
Transcribed Image Text:8.7.3 Example C For the equation Ay(x) = Dy(x), (8.282) it follows that C y(x + 1) – y(x) = dx dy(x) (8.283) This is a linear equation, with constant coefficients, and we will assume the solution takes the form y(x) = e"ª, (8.284) and, therefore, we find dy(x) y(x + 1) = e"(2+1) = e"e"ª, re"*. (8.285) dx Substitution of these results into the original equation and canceling the com- mon factor e"", gives the transcendental equation e" - r – 1 = 0. (8.286) 404 Difference Equations Note that this equation has solutions in terms of the Lambert W-function. In general, an infinite set of roots exist and if they are denoted by {rm}mE, |m=∞ then the solution takes the form Cy(2) = E ame"mz, (8.287) rmx m=0 where {am} are constants. Inspection of equation (8.286) shows that r a solution, thus one solution to Ay(x) = Dy(x) is y(x) = A, where A is an arbitrary constant. = 0 is
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