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Ireland Contests
Ireland National Math Olympiad
1997 Irish Math Olympiad
4
easy inequality
easy inequality
Source: Ireland 1997
July 3, 2009
inequalities
inequalities proposed
Problem Statement
Let
a
,
b
,
c
a,b,c
a
,
b
,
c
be nonnegative real numbers. Suppose that a\plus{}b\plus{}c\ge abc. Prove that: a^2\plus{}b^2\plus{}c^2 \ge abc.
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