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Ez Pascal and Polars

Source: MDA TST 2016, B9

March 26, 2019
one-liner

Problem Statement

Let A1A2⋯A14A_{1}A_{2} \cdots A_{14} be a regular 14−14-gon. Prove that A1A3∩A5A11∩A6A9≠∅A_{1}A_{3}\cap A_{5}A_{11}\cap A_{6}A_{9}\ne \emptyset.
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