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mp-32-cubics.pdf
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Кубические кривые
и элементарная геометрия (А.Заславский, П.Кожевников; МатПросвещение, сер. 3, вып. 32)

тут неоднократно спрашивали, где можно прочитать про использование сложения точек на кубиках и т.п. в планиметрии — ну так вот

остальные материалы выпуска, кстати, тоже доступны — см. https://mccme.ru/free-books/matpros/pdf/mp-32.pdf



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Кубические кривые
и элементарная геометрия (А.Заславский, П.Кожевников; МатПросвещение, сер. 3, вып. 32)

тут неоднократно спрашивали, где можно прочитать про использование сложения точек на кубиках и т.п. в планиметрии — ну так вот

остальные материалы выпуска, кстати, тоже доступны — см. https://mccme.ru/free-books/matpros/pdf/mp-32.pdf

BY Олимпиадная геометрия


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Telegram | DID YOU KNOW?

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Two days after Russia invaded Ukraine, an account on the Telegram messaging platform posing as President Volodymyr Zelenskiy urged his armed forces to surrender. Telegram, which does little policing of its content, has also became a hub for Russian propaganda and misinformation. Many pro-Kremlin channels have become popular, alongside accounts of journalists and other independent observers. The news also helped traders look past another report showing decades-high inflation and shake off some of the volatility from recent sessions. The Bureau of Labor Statistics' February Consumer Price Index (CPI) this week showed another surge in prices even before Russia escalated its attacks in Ukraine. The headline CPI — soaring 7.9% over last year — underscored the sticky inflationary pressures reverberating across the U.S. economy, with everything from groceries to rents and airline fares getting more expensive for everyday consumers. Channels are not fully encrypted, end-to-end. All communications on a Telegram channel can be seen by anyone on the channel and are also visible to Telegram. Telegram may be asked by a government to hand over the communications from a channel. Telegram has a history of standing up to Russian government requests for data, but how comfortable you are relying on that history to predict future behavior is up to you. Because Telegram has this data, it may also be stolen by hackers or leaked by an internal employee. At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion.
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