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В треугольнике ABC I - центр вписанной окружности, N - точка Нагеля, F - точка Фейербаха, H - ортоцентр. X - симметрична I относительно F. Докажите, что окружность (IHX) касается прямой HN
В треугольнике ABC I - центр вписанной окружности, N - точка Нагеля, F - точка Фейербаха, H - ортоцентр. X - симметрична I относительно F. Докажите, что окружность (IHX) касается прямой HN
Russian President Vladimir Putin launched Russia's invasion of Ukraine in the early-morning hours of February 24, targeting several key cities with military strikes. He adds: "Telegram has become my primary news source." Stocks closed in the red Friday as investors weighed upbeat remarks from Russian President Vladimir Putin about diplomatic discussions with Ukraine against a weaker-than-expected print on U.S. consumer sentiment. Lastly, the web previews of t.me links have been given a new look, adding chat backgrounds and design elements from the fully-features Telegram Web client. In this regard, Sebi collaborated with the Telecom Regulatory Authority of India (TRAI) to reduce the vulnerability of the securities market to manipulation through misuse of mass communication medium like bulk SMS.
from cn
