Consider the (linear inhomogeneous) ordinary differential equation df +2f(x) = x². dx (i.) Find a particular solution of this equation by guessing a solution of the form fo(x) = co + €₁x + €₂x². (ii.) Find the general solution of this equation by solving the associated (linear homogeneous) ordinary differential equation +2f(x) = 0. (iii.) Establish that the solutions are closed under affine combinations (i.e. the solutions form an affine subset of functions).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question
Consider the (linear inhomogeneous) ordinary differential equation
df
+2f(x) = x².
dx
(i.) Find a particular solution of this equation by guessing a solution of the
form fo(x) = co + €₁.x + €₂x².
(ii.) Find the general solution of this equation by solving the associated
(linear homogeneous) ordinary differential equation +2f(x) = 0.
(iii.) Establish that the solutions are closed under affine combinations (i.e.
the solutions form an affine subset of functions).
Transcribed Image Text:Consider the (linear inhomogeneous) ordinary differential equation df +2f(x) = x². dx (i.) Find a particular solution of this equation by guessing a solution of the form fo(x) = co + €₁.x + €₂x². (ii.) Find the general solution of this equation by solving the associated (linear homogeneous) ordinary differential equation +2f(x) = 0. (iii.) Establish that the solutions are closed under affine combinations (i.e. the solutions form an affine subset of functions).
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