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Problem 2+
CVM 2020 - RE - P2
CVM 2020 - RE - P2
Source: CVM 2020
July 16, 2020
algebra
Problem Statement
Find all the real solutions to
n
=
∑
i
=
1
n
x
i
=
∑
1
≤
i
<
j
≤
n
x
i
x
j
n=\sum_{i=1}^n x_i=\sum_{1\le i<j\le n} x_ix_j
n
=
i
=
1
∑
n
x
i
=
1
≤
i
<
j
≤
n
∑
x
i
x
j
Proposed by Carlos Dominguez, Valle
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