IMO 1995 Problem 2
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IMO 2000 Problem 2
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1995 British Mathematics Olympiad problem
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My favourite Olympiad Inequality | IMO 1995 Problem 2 Solution
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Limit of x! over x^x as x goes to infinity
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IMO 2023 Problem 4
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The strange cousin of the complex numbers -- the dual numbers.
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IMO 2024 Problem 4, with discussion of a generalized case
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