The text states: If the decimal expansions of numbers a and b agree to k places, then
Chapter 1, Problem 35(choose chapter or problem)
The text states: If the decimal expansions of numbers a and b agree to k places, then |a b| 10k. Show that the converse is false: For all k there are numbers a and b whose decimal expansions do not agree at all but |a b| 10k.
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