Олимпиада ЮМШ 10 класс. Точки P и Q изогонально сопряжены в правильном треугольнике ABC с центром O. Оказалось, что угол POQ = 90. Докажите, что PQ касается описанной окружности треугольника ABC.
Олимпиада ЮМШ 10 класс. Точки P и Q изогонально сопряжены в правильном треугольнике ABC с центром O. Оказалось, что угол POQ = 90. Докажите, что PQ касается описанной окружности треугольника ABC.
"There are several million Russians who can lift their head up from propaganda and try to look for other sources, and I'd say that most look for it on Telegram," he said. Sebi said data, emails and other documents are being retrieved from the seized devices and detailed investigation is in progress. 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. The Security Service of Ukraine said in a tweet that it was able to effectively target Russian convoys near Kyiv because of messages sent to an official Telegram bot account called "STOP Russian War." Two days after Russia invaded Ukraine, an account on the Telegram messaging platform posing as President Volodymyr Zelenskiy urged his armed forces to surrender.
from fr
