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Topic: discrete structures
Replies: 9   Last Post: Apr 13, 2008 10:14 PM

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Posts: 7
From: mass.
Registered: 2/23/08
discrete structures
Posted: Feb 24, 2008 4:45 PM
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(a) Let n and a be positive integers with gcd(a, n)=1. Prove that the equation a x?1(mod n) has a solution.
(b) Solve 271 x ? 1 (mod 1003)
(c) Solve 7008x ? 1(mod 7919)

any ideas or thoughts??

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