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| ``Re: Proof''
by pahio on 2007-12-28 12:28:53 |
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| No. The polynomial may well be irreducible (e.g. x^3-15x-4; can you factorise it in Q[x]?).
It's true that f can be always be factorised as you write, but the real numbers a_j are not rational unless n is not a power of 2.
Jussi |
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