6. Let f.g: RR be continuous functions and define S = {r ER: f(r) - g(x) = Z}, where Z stands for the set of all integers. Let (r) be a convergent sequence in S and let z = limn→ In. Can we say that r ES? Would your answer change if we replace Z with the set Q of all rational numbers? Justify your answer.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 72E
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6. Let f, 9 : R → R be continuous functions and define
S = {x € R: f(x) - g(x) € Z},
where Z stands for the set of all integers. Let (r,) be a convergent sequence in S and let x =
lim,+x *n. Can we say that a E S? Would your answer change if we replace Z with the set Q of all
rational numbers? Justify your answer.
Transcribed Image Text:6. Let f, 9 : R → R be continuous functions and define S = {x € R: f(x) - g(x) € Z}, where Z stands for the set of all integers. Let (r,) be a convergent sequence in S and let x = lim,+x *n. Can we say that a E S? Would your answer change if we replace Z with the set Q of all rational numbers? Justify your answer.
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