Let p be a prime number with p = 1 mod 4. Prove that

the summation of (a/p), a is from 1 to (p-1)/2, is equal to 0.

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- Nov 27th 2012, 07:52 AMbabygillQuadratic Residues
Let p be a prime number with p = 1 mod 4. Prove that

the summation of (a/p), a is from 1 to (p-1)/2, is equal to 0. - Nov 27th 2012, 01:05 PMtopsquarkRe: Quadratic Residues
- Nov 27th 2012, 01:32 PMbabygillRe: Quadratic Residues
the problem is I have no idea where to start