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рассматривают всевозможные пунктирные окружности, касающиеся двух данных (внутренним образом)

доказать, что концы возникающих красных хорд лежат на одной окружности

( задача П.Кожевникова на позавчерашнем Турнире городов; все задачи: https://turgor.ru/problems/46/os-46-sl-avt.pdf )



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рассматривают всевозможные пунктирные окружности, касающиеся двух данных (внутренним образом)

доказать, что концы возникающих красных хорд лежат на одной окружности

( задача П.Кожевникова на позавчерашнем Турнире городов; все задачи: https://turgor.ru/problems/46/os-46-sl-avt.pdf )

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Telegram does offer end-to-end encrypted communications through Secret Chats, but this is not the default setting. Standard conversations use the MTProto method, enabling server-client encryption but with them stored on the server for ease-of-access. This makes using Telegram across multiple devices simple, but also means that the regular Telegram chats you’re having with folks are not as secure as you may believe. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion. "We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said. "He has to start being more proactive and to find a real solution to this situation, not stay in standby without interfering. It's a very irresponsible position from the owner of Telegram," she said. 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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