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irreducible? (Posted on 2013-03-29) Difficulty: 2 of 5
Prove that the fraction (21n+4)/(14n+3) is irreducible for every natural number n.

Source: Russian IMO

No Solution Yet Submitted by Ady TZIDON    
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re: hmmmm | Comment 5 of 6 |
(In reply to hmmmm by broll)

While I'm a little like Steve in understanding how you transformed the expression to that at your end, the end expression does explain my Excel observation that the limit is 1.5, ie, (3/2 - something).

  Posted by brianjn on 2013-03-30 02:58:37
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