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**tony123****Member**- Registered: 2007-08-03
- Posts: 189

Determine all

of positive rational numbers

such that

is an integer.

*Last edited by tony123 (2009-06-23 19:12:46)*

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

and work.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,701

Hi;

So does

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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