In applications, most initial value problems will have a unique solution. In fact, the existence of unique solutions is so important that there is a theorem about the existence and uniqueness of a solution. Consider the initial value problem of dy dx = f(x,y), y(xo)=yo If f and are continuous functions in some rectangle R= {(x,y) a

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Problem 1RQ
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In applications, most initial value problems will have a unique solution. In fact, the existence of unique solutions is so
important that there is a theorem about the existence and uniqueness of a solution. Consider the initial value problem
of
dy
dx
= f(x,y), y(xo)=yo
If f and
are continuous functions in some rectangle R= {(x,y) a <x<b, c<y<d} that
contains the point (xo.yo), then the initial value problem has a unique solution ((x) in some interval
x0-6<x<x0 +8, where & is a positive number. The method for separable equations can give a solution, but it may
not give all the solutions. To illustrate this, consider the equation
1
dy 3
Ħy
Answer parts (a) through (d).
dx
(a) Use the method of separation of variables to find the solution to
dy=dx
1
dy
Fy
dx
Begin by separating the variables.
Transcribed Image Text:In applications, most initial value problems will have a unique solution. In fact, the existence of unique solutions is so important that there is a theorem about the existence and uniqueness of a solution. Consider the initial value problem of dy dx = f(x,y), y(xo)=yo If f and are continuous functions in some rectangle R= {(x,y) a <x<b, c<y<d} that contains the point (xo.yo), then the initial value problem has a unique solution ((x) in some interval x0-6<x<x0 +8, where & is a positive number. The method for separable equations can give a solution, but it may not give all the solutions. To illustrate this, consider the equation 1 dy 3 Ħy Answer parts (a) through (d). dx (a) Use the method of separation of variables to find the solution to dy=dx 1 dy Fy dx Begin by separating the variables.
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