Это задача с одной небезызвестной олимпиады под авторством одного из админов нашего канала, который правда ещё не нашел кнопку опубликовать)).
На окружности отмечены точки A, B, C, D, E, F (в указанном порядке), причём AB = = BC = CD. Прямая BE пересекает прямые CF и DF в точках G и H соответственно, а прямая AE пересекает прямые CF и BF в точках J и K соответственно. Лучи KG и JH пересекают окружность в точках M и N, расстояние между которыми равно AB. Докажите, что прямые GK и JH пересекаются на окружности.
Это задача с одной небезызвестной олимпиады под авторством одного из админов нашего канала, который правда ещё не нашел кнопку опубликовать)).
На окружности отмечены точки A, B, C, D, E, F (в указанном порядке), причём AB = = BC = CD. Прямая BE пересекает прямые CF и DF в точках G и H соответственно, а прямая AE пересекает прямые CF и BF в точках J и K соответственно. Лучи KG и JH пересекают окружность в точках M и N, расстояние между которыми равно AB. Докажите, что прямые GK и JH пересекаются на окружности.
"We're seeing really dramatic moves, and it's all really tied to Ukraine right now, and in a secondary way, in terms of interest rates," Octavio Marenzi, CEO of Opimas, told Yahoo Finance Live on Thursday. "This war in Ukraine is going to give the Fed the ammunition, the cover that it needs, to not raise interest rates too quickly. And I think Jay Powell is a very tepid sort of inflation fighter and he's not going to do as much as he needs to do to get that under control. And this seems like an excuse to kick the can further down the road still and not do too much too soon." If you initiate a Secret Chat, however, then these communications are end-to-end encrypted and are tied to the device you are using. That means it’s less convenient to access them across multiple platforms, but you are at far less risk of snooping. Back in the day, Secret Chats received some praise from the EFF, but the fact that its standard system isn’t as secure earned it some criticism. If you’re looking for something that is considered more reliable by privacy advocates, then Signal is the EFF’s preferred platform, although that too is not without some caveats. 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. 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.
from ar
