Выходные данные неизвестны This set of notes on number theory was originally written in 1995 for students at the IMO (International Mathematical Olympiad) level. It covers the basic background material that an IMO student should be familiar with. This text is meant to be a reference, and not a replacement but rather a supplement to a number theory textbook; several are given at...
Trinity College, Cambridge/USA, 2011, 6 pages. In these notes, there are collected solutions to the number of geometry problems from various International and National Mathematical Olympiads. The problems are solved using the tool called Power of a Point.
Massachusetts Institute of Technology, Cambridge/USA, 2007, 1 page. In these handouts, Yufei proposes a number of geometry problems that can be solved using the tool called similarity. These handouts are for IMO training.
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