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putnam exam (pure math)
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USAMO 2003 problems are available
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Topic: USAMO 2003 problems are available
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anonymous
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USAMO 2003 problems are available
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May 1
st
, 2003, 5:26am »
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http://www.unl.edu/amc/
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anonymous
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Re: USAMO 2003 problems are available
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May 7
th
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Day 1 problems are very easy.
Day 2 problems are very difficult.
Hints:
1) induction
2) draw quadrilateral and pentagon
3) find lower bound of t(a_i)
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