Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #2 20081110 08:27:38
Re: Let integer p and qI make it p(q1)/2. Why did the vector cross the road? It wanted to be normal. #3 20081110 14:37:36
Re: Let integer p and qI presume you mean
Consider the integers Since p and q are coprime, no two of them are congruent modulo q. Hence all the numbers are a permutation of 1, 2, …, q−1 (mod q). Hence if we write we have . Now Last edited by JaneFairfax (20081111 00:28:44) 