Разминка дня (простите) №28: Докажите, что в ортоцентрическом тетраэдре (в котором все высоты пересекаются в одной точке) окружности девяти точек граней лежат на одной сфере
Разминка дня (простите) №28: Докажите, что в ортоцентрическом тетраэдре (в котором все высоты пересекаются в одной точке) окружности девяти точек граней лежат на одной сфере
"Russians are really disconnected from the reality of what happening to their country," Andrey said. "So Telegram has become essential for understanding what's going on to the Russian-speaking world." The perpetrators use various names to carry out the investment scams. They may also impersonate or clone licensed capital market intermediaries by using the names, logos, credentials, websites and other details of the legitimate entities to promote the illegal schemes. Anastasia Vlasova/Getty Images 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." Two days after Russia invaded Ukraine, an account on the Telegram messaging platform posing as President Volodymyr Zelenskiy urged his armed forces to surrender.
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