Let p be prime and f (x) f 0 + f 1 x + +
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Let p be prime and f (x) ≡ f0 + f1x + ··· + ftxt (mod p) be a polynomial of degree t, with coefficients fi drawn from ℤp. We say that a ∈ ℤp is a zero of f if f (a) ≡ 0 (mod p). Prove that if a is a zero of f, then F (x) ≡ (x ≡ a) g (x) (mod p) for some polynomial g (x) of degree t − 1. Prove by induction on t that if p is prime, then a polynomial f (x) of degree t can have at most t distinct zeros modulo p.
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The statement we are trying to prove here is that if p is a prime number and f x is a polynomial of ...View the full answer
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Related Book For
Introduction to Algorithms
ISBN: 978-0262033848
3rd edition
Authors: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest
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