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Thailand by Jirayus Jinapong is a document available to read on EtoBox.

The document contains 5 math problems submitted to the 2017 APMO (Art of Problem Solving Mathematics Olympiad). The first problem asks to determine all 2017-tuples of integers such that any 5 consecutive integers satisfy a given condition. The second problem asks to prove that the midpoint of a given line segment lies on a given circle. The third problem asks to prove two functions counting sequences are equal. The fourth problem asks to prove rational numbers satisfying given conditions are "powerful." The

Author

Jirayus Jinapong

Language

EN