MathDB
System of Equations

Source: 2016 CMO #2

April 10, 2016
algebrasystem of equations

Problem Statement

Consider the following system of 1010 equations in 1010 real variables v1,,v10v_1, \ldots, v_{10}: vi=1+6vi2v12+v22++v102(i=1,,10).v_i = 1 + \frac{6v_i^2}{v_1^2 + v_2^2 + \cdots + v_{10}^2} \qquad (i = 1, \ldots, 10). Find all 1010-tuples (v1,v2,,v10)(v_1, v_2, \ldots , v_{10}) that are solutions of this system.