Prove or disprove: if a^2=b^2=mod(n) and n is prime then a=b(mod n) or a=-b(mod n).

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- February 1st 2010, 08:44 PMDeepucongruence in integer #2
Prove or disprove: if a^2=b^2=mod(n) and n is prime then a=b(mod n) or a=-b(mod n).

- February 2nd 2010, 03:24 AMtonio