Очень красивая задача с командной олимпиады сеньоров с Колма, который идет прямо сейчас. Биссектрисы AA1, BB1, CC1 неравнобедренного треугольника ABC пересекаются в точке I. Впи- санная окружность треугольника ABC касается стороны BC в точке A2. Окружность ωa проходит через точки A1, A2 и середину отрезка AI. Окружности ωb и ωc определяются аналогично. Докажите, что центры окружностей ωa, ωb, ωc лежат на одной прямой.
Очень красивая задача с командной олимпиады сеньоров с Колма, который идет прямо сейчас. Биссектрисы AA1, BB1, CC1 неравнобедренного треугольника ABC пересекаются в точке I. Впи- санная окружность треугольника ABC касается стороны BC в точке A2. Окружность ωa проходит через точки A1, A2 и середину отрезка AI. Окружности ωb и ωc определяются аналогично. Докажите, что центры окружностей ωa, ωb, ωc лежат на одной прямой.
Pavel Durov, Telegram's CEO, is known as "the Russian Mark Zuckerberg," for co-founding VKontakte, which is Russian for "in touch," a Facebook imitator that became the country's most popular social networking site. False news often spreads via public groups, or chats, with potentially fatal effects. The War on Fakes channel has repeatedly attempted to push conspiracies that footage from Ukraine is somehow being falsified. One post on the channel from February 24 claimed without evidence that a widely viewed photo of a Ukrainian woman injured in an airstrike in the city of Chuhuiv was doctored and that the woman was seen in a different photo days later without injuries. The post, which has over 600,000 views, also baselessly claimed that the woman's blood was actually makeup or grape juice. 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. Oh no. There’s a certain degree of myth-making around what exactly went on, so take everything that follows lightly. Telegram was originally launched as a side project by the Durov brothers, with Nikolai handling the coding and Pavel as CEO, while both were at VK.
from id
