a. The norm ||·||: Rm→R is a continuous function. O b. Every polynomial is continuous. c. If f: Rm Rn is continuous at x in Rm and (xk) in Rm is a sequence with limk→∞Xk=X, then f(x)=limk→∞of(xk).

College Algebra
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ISBN:9781938168383
Author:Jay Abramson
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Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 2SE: If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local...
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Which of the following statements are true?

 

a. The norm ||·||: R™→R is a continuous function.
b. Every polynomial is continuous.
c. If f: Rm→R" is continuous at x in Rm and (xk) in Rm is a sequence with limk→∞Xk=X,
then f(x)=limk→∞of(xk).
d. A function f: Rm→R" is continuous if and only if for every x in Rm and ε>0, there
exists 8>0 such that ||f(x)-f(y)||≤ɛ holds for all y with ||x-y||≤6.
e. If f: Rm→R" is a function, if x in Rm, and if f(x)=limk→∞f(xê) holds whenever (xê) in
Rm is a sequence with limk→∞oXk=X, then f is continuous at x.
Transcribed Image Text:a. The norm ||·||: R™→R is a continuous function. b. Every polynomial is continuous. c. If f: Rm→R" is continuous at x in Rm and (xk) in Rm is a sequence with limk→∞Xk=X, then f(x)=limk→∞of(xk). d. A function f: Rm→R" is continuous if and only if for every x in Rm and ε>0, there exists 8>0 such that ||f(x)-f(y)||≤ɛ holds for all y with ||x-y||≤6. e. If f: Rm→R" is a function, if x in Rm, and if f(x)=limk→∞f(xê) holds whenever (xê) in Rm is a sequence with limk→∞oXk=X, then f is continuous at x.
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