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Прямая, проходящая через ортоцентр треугольника ABC пересекает его стороны AB и AC в точках D и E соответственно. Сторона BC, перпендикуляр к AB в точке D и перпендикуляр к AC в точке E образуют треугольник T. Докажите, что описанные окружности треугольников T и ABC касаются.
Прямая, проходящая через ортоцентр треугольника ABC пересекает его стороны AB и AC в точках D и E соответственно. Сторона BC, перпендикуляр к AB в точке D и перпендикуляр к AC в точке E образуют треугольник T. Докажите, что описанные окружности треугольников T и ABC касаются.
Telegram was co-founded by Pavel and Nikolai Durov, the brothers who had previously created VKontakte. VK is Russia’s equivalent of Facebook, a social network used for public and private messaging, audio and video sharing as well as online gaming. In January, SimpleWeb reported that VK was Russia’s fourth most-visited website, after Yandex, YouTube and Google’s Russian-language homepage. In 2016, Forbes’ Michael Solomon described Pavel Durov (pictured, below) as the “Mark Zuckerberg of Russia.” But Kliuchnikov, the Ukranian now in France, said he will use Signal or WhatsApp for sensitive conversations, but questions around privacy on Telegram do not give him pause when it comes to sharing information about the war. "The result is on this photo: fiery 'greetings' to the invaders," the Security Service of Ukraine wrote alongside a photo showing several military vehicles among plumes of black smoke. The SC urges the public to refer to the SC’s I nvestor Alert List before investing. The list contains details of unauthorised websites, investment products, companies and individuals. Members of the public who suspect that they have been approached by unauthorised firms or individuals offering schemes that promise unrealistic returns The Russian invasion of Ukraine has been a driving force in markets for the past few weeks.
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