В выпуклом четырёхугольнике ABCD E - точка пересечения диагоналей. F - точка пересечения лучей AB и DC. Точка X - E-точка Шалтая треугольника AED, а точка Y - E-точка Шалтая треугольника BEC. Доказать, что (XEY) касается FE.
В выпуклом четырёхугольнике ABCD E - точка пересечения диагоналей. F - точка пересечения лучей AB и DC. Точка X - E-точка Шалтая треугольника AED, а точка Y - E-точка Шалтая треугольника BEC. Доказать, что (XEY) касается FE.
The regulator said it has been undertaking several campaigns to educate the investors to be vigilant while taking investment decisions based on stock tips. But the Ukraine Crisis Media Center's Tsekhanovska points out that communications are often down in zones most affected by the war, making this sort of cross-referencing a luxury many cannot afford. 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. Recently, Durav wrote on his Telegram channel that users' right to privacy, in light of the war in Ukraine, is "sacred, now more than ever." 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.
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