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Задача 59: Автор - Пётр Ким Источник - Южный Математический Турнир 2024
В треугольнике ABC w - вписанная окружность. B-полувписанная окружность пересекает C-полувписанную окружность в точке X. Оказалось, что X лежит вне w. Из X провели касательные k и l к w. Доказать, что существует окружность, касающаяся k и l и проходящая через B и C.
Задача 59: Автор - Пётр Ким Источник - Южный Математический Турнир 2024
В треугольнике ABC w - вписанная окружность. B-полувписанная окружность пересекает C-полувписанную окружность в точке X. Оказалось, что X лежит вне w. Из X провели касательные k и l к w. Доказать, что существует окружность, касающаяся k и l и проходящая через B и C.
"Your messages about the movement of the enemy through the official chatbot … bring new trophies every day," the government agency tweeted. To that end, when files are actively downloading, a new icon now appears in the Search bar that users can tap to view and manage downloads, pause and resume all downloads or just individual items, and select one to increase its priority or view it in a chat. Just days after Russia invaded Ukraine, Durov wrote that Telegram was "increasingly becoming a source of unverified information," and he worried about the app being used to "incite ethnic hatred." The channel appears to be part of the broader information war that has developed following Russia's invasion of Ukraine. The Kremlin has paid Russian TikTok influencers to push propaganda, according to a Vice News investigation, while ProPublica found that fake Russian fact check videos had been viewed over a million times on Telegram. The regulator said it had received information that messages containing stock tips and other investment advice with respect to selected listed companies are being widely circulated through websites and social media platforms such as Telegram, Facebook, WhatsApp and Instagram.
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