Пусть X и Y - проекции ортоцентра H треугольника ABC на внутреннюю и внешнюю биссектрисы угла B. Докажите, что прямая XY проходит через середину стороны AC.
Пусть X и Y - проекции ортоцентра H треугольника ABC на внутреннюю и внешнюю биссектрисы угла B. Докажите, что прямая XY проходит через середину стороны AC.
On Feb. 27, however, he admitted from his Russian-language account that "Telegram channels are increasingly becoming a source of unverified information related to Ukrainian events." For tech stocks, “the main thing is yields,” Essaye said. 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. In February 2014, the Ukrainian people ousted pro-Russian president Viktor Yanukovych, prompting Russia to invade and annex the Crimean peninsula. By the start of April, Pavel Durov had given his notice, with TechCrunch saying at the time that the CEO had resisted pressure to suppress pages criticizing the Russian government. READ MORE
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