дано трикутник ABC і вписану коніку з фокусами P

скучні задачі

дано трикутник ABC і вписану коніку з фокусами P, Q. трикутники APQ, BPQ, CPQ доповнили до гармонійних чотирикутників точками A', B', C'.

а) доведіть перспективність ABC і A'B'C'

б) доведіть що перспектор X цих трикутників належить колу (A'B'C')

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206 viewsДон Шихуан, Jun 19 at 22:22

tg-me.com/boring_problems/308

Create: 2025-06-19
Last Update: 2025-06-30 23:34:02

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