поризм мікеля, або ботанський погляд на поворотну гомотетію. дано n кіл ω_1, ω_2,...,ω_n що проходять через одну точку O. вторинні точки перетину(між ω_1 і ω_2, ..., ω_n і ω_1) позначимо як P_1, P_2,..., P_n. A_1 - довільна точка на ω_1, A_2 - точка перетину A_1P_1 і ω_2,..., доведіть, що точки P_{n+1} і P_1 співпадають
це не задача, а просто спостереження таке тривіальне.
поризм мікеля, або ботанський погляд на поворотну гомотетію. дано n кіл ω_1, ω_2,...,ω_n що проходять через одну точку O. вторинні точки перетину(між ω_1 і ω_2, ..., ω_n і ω_1) позначимо як P_1, P_2,..., P_n. A_1 - довільна точка на ω_1, A_2 - точка перетину A_1P_1 і ω_2,..., доведіть, що точки P_{n+1} і P_1 співпадають
це не задача, а просто спостереження таке тривіальне.
BY скучні задачі
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Telegram was founded in 2013 by two Russian brothers, Nikolai and Pavel Durov. In addition, Telegram's architecture limits the ability to slow the spread of false information: the lack of a central public feed, and the fact that comments are easily disabled in channels, reduce the space for public pushback. On Feb. 27, however, he admitted from his Russian-language account that "Telegram channels are increasingly becoming a source of unverified information related to Ukrainian events." Crude oil prices edged higher after tumbling on Thursday, when U.S. West Texas intermediate slid back below $110 per barrel after topping as much as $130 a barrel in recent sessions. Still, gas prices at the pump rose to fresh highs. The company maintains that it cannot act against individual or group chats, which are “private amongst their participants,” but it will respond to requests in relation to sticker sets, channels and bots which are publicly available. During the invasion of Ukraine, Pavel Durov has wrestled with this issue a lot more prominently than he has before. Channels like Donbass Insider and Bellum Acta, as reported by Foreign Policy, started pumping out pro-Russian propaganda as the invasion began. So much so that the Ukrainian National Security and Defense Council issued a statement labeling which accounts are Russian-backed. Ukrainian officials, in potential violation of the Geneva Convention, have shared imagery of dead and captured Russian soldiers on the platform.
from hk
