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chichilove82
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$5.00 Continuous Function

  • From Mathematics: Calculus
  • Closed, but you can still post tutorials
  • Due on Apr. 30, 2008
  • Asked on Apr 28, 2008 at 9:55:42PM
Q:
Prove or find a counterexample to the following statements in which we assumed that f is a funtion defined on the interval indicated

a)f continuous on (a,b) implies that for any sequence {x_n} in (a,b) converging to a, the sequence {f(x_n)} converges

b)f bounded and contiuous on D implies that f is uniformly continuous on D

c)f uniformly continuous on D implies that f is bounded on D

d)f uniformly continuous on (a,b) implies that f is bounded on (a,b)

e)f bounded on D implies that f is uniformly continuous on D
 


   
   
   
   
 
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Posted by:
cxxliu
cxxliu
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$5.00 so many false

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  • Posted on Apr 30, 2008 at 7:42:27PM
A:
Preview: ... |<delta=epsilon). But f is unbounded.<br><br>d) True.<br>Let epsilon = 1. By the definition of uniform continuity, there exists delta > 0 such that for x,t in (a,b) satisfying |x-t| <= delta, |f(x)-f(t)| < 1. Pick any x in (a,b). ...

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