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Topic: [Mathqa]rational functions
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Nick Halloway

Posts: 505
Registered: 12/4/04
[Mathqa]rational functions
Posted: Mar 2, 2001 5:11 PM
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If f(x) = p(x)/q(x) is a rational function with coefficients in a finite
extension of the rationals, and f(z) is a root of 1 for oo many z that are
roots of 1, show that f(x) = c*x^n for some integer n.


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