Explain the basics: Explain the concepts as well Let f: RR be an increasing function. Suppose that there exist a, b E R satisfy b> a and a ≤ f(a) and f(b) < b. Show that f has at least one fixed point., that is, there is some ER such that f(x) = x. (Hint: Consider z = sup{y ER: a ≤ y ≤ by ≤ f(y)} and z) Also explain sup can explain how to solve this? why is feto a increase foto? why is the y values part of x values? (f(b)z why f(f(z)) what is it?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Explain the basics:
Explain the concepts as well
Let f: R→ R be an increasing function. Suppose that there exist a, b R satisfy
b>a and a ≤ f(a) and f(b) < b. Show that f has at least one fixed point., that is, there
is some x ER such that f(x) = x.
(Hint: Consider z := sup{y € R: a ≤ y ≤ by ≤ f(y)} and 2)
Also explain sup
can explain how to solve this?
why is fctn_a increase fctn?
why is the y values part of x values?
(f(b)<br
why is:
f(z)>z
why f(f(z)) what is it?
Transcribed Image Text:Explain the basics: Explain the concepts as well Let f: R→ R be an increasing function. Suppose that there exist a, b R satisfy b>a and a ≤ f(a) and f(b) < b. Show that f has at least one fixed point., that is, there is some x ER such that f(x) = x. (Hint: Consider z := sup{y € R: a ≤ y ≤ by ≤ f(y)} and 2) Also explain sup can explain how to solve this? why is fctn_a increase fctn? why is the y values part of x values? (f(b)<br why is: f(z)>z why f(f(z)) what is it?
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