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. You may recall that, back when Facebook started changing WhatsApp’s terms of service, a number of news outlets reported on, and even recommended, switching to Telegram. Pavel Durov even said that users should delete WhatsApp “unless you are cool with all of your photos and messages becoming public one day.” But Telegram can’t be described as a more-secure version of WhatsApp. "Your messages about the movement of the enemy through the official chatbot … bring new trophies every day," the government agency tweeted. Oleksandra Matviichuk, a Kyiv-based lawyer and head of the Center for Civil Liberties, called Durov’s position "very weak," and urged concrete improvements. Now safely in France with his spouse and three of his children, Kliuchnikov scrolls through Telegram to learn about the devastation happening in his home country.
from br
