Are the following statements true or false? If true give a proof, and if false give a counter-example: (a)Consider a continuous function f : (0, 1) → R and a Cauchy sequence Xn ∈ (0, 1).Then f(Xn) is also Cauchy.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 52E
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Are the following statements true or false? If true give a proof, and if false give a counter-example:

(a)Consider a continuous function f : (0, 1) → R and a Cauchy sequence Xn ∈ (0, 1).Then f(Xn) is also Cauchy.

(b)If Xn <a and limn→∞: Xn =l, then l<a.

(c) For an, bn ∈ R, consider a sequence of open intervals In = (an, bn).

 

If In+1 C In then n=1 In = Ø.
Transcribed Image Text:If In+1 C In then n=1 In = Ø.
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