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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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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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Telegram | DID YOU KNOW?

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The message was not authentic, with the real Zelenskiy soon denying the claim on his official Telegram channel, but the incident highlighted a major problem: disinformation quickly spreads unchecked on the encrypted app. As the war in Ukraine rages, the messaging app Telegram has emerged as the go-to place for unfiltered live war updates for both Ukrainian refugees and increasingly isolated Russians alike. It is unclear who runs the account, although Russia's official Ministry of Foreign Affairs Twitter account promoted the Telegram channel on Saturday and claimed it was operated by "a group of experts & journalists." Oh no. There’s a certain degree of myth-making around what exactly went on, so take everything that follows lightly. Telegram was originally launched as a side project by the Durov brothers, with Nikolai handling the coding and Pavel as CEO, while both were at VK. The Russian invasion of Ukraine has been a driving force in markets for the past few weeks.
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