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Разминка дня №35 (авторская, мордовский муницип 10.3):
Дана трапеция ABCD с основаниями AB и CD такая, что AC перпендикулярно CD. E на BC такова, что ∠DAC = ∠CAE. BD пересекает AC в точке F. Докажите, что EF || CD.
Разминка дня №35 (авторская, мордовский муницип 10.3):
Дана трапеция ABCD с основаниями AB и CD такая, что AC перпендикулярно CD. E на BC такова, что ∠DAC = ∠CAE. BD пересекает AC в точке F. Докажите, что EF || CD.
There was another possible development: Reuters also reported that Ukraine said that Belarus could soon join the invasion of Ukraine. However, the AFP, citing a Pentagon official, said the U.S. hasn’t yet seen evidence that Belarusian troops are in Ukraine. The message was not authentic, with the real Zelenskiy soon denying the claim on his official Telegram channel, but the incident highlighted a major problem: disinformation quickly spreads unchecked on the encrypted app. "And that set off kind of a battle royale for control of the platform that Durov eventually lost," said Nathalie Maréchal of the Washington advocacy group Ranking Digital Rights. A Russian Telegram channel with over 700,000 followers is spreading disinformation about Russia's invasion of Ukraine under the guise of providing "objective information" and fact-checking fake news. Its influence extends beyond the platform, with major Russian publications, government officials, and journalists citing the page's posts. Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts.
from ru
