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  3. let k 01 r be defined by k...

Question: let k 01 r be defined by k...

Question details
  1. Let k : (0,1) → R be defined by k (x) = 0 whenever, x is irrational, and k (x) = n when x = m/n

    where m, n have no common factor other than 1. Prove that k is unbounded in any (a, b) which is a subset of (0, 1), and that k is not continuous on (0, 1).

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