Tag: combinatorics
All the articles with the tag "combinatorics".
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How Far Can One Go with the Basic Definitions of Binomial Coefficient on an AIME Last Five Problem
We will compare different solutions to 2026 AIME I, Problem 13, including those using advanced knowledge like finite fields, and those starting from the very elementary approaches. We will point out the connections behind them and share our thoughts from a pedagogical point of view.