Notice: file_put_contents(): Write of 7522 bytes failed with errno=28 No space left on device in /var/www/group-telegram/post.php on line 50 Задача дня | Telegram Webview: zadacha_dna/428 -
Разминка дня (простите) №28: Докажите, что в ортоцентрическом тетраэдре (в котором все высоты пересекаются в одной точке) окружности девяти точек граней лежат на одной сфере
Разминка дня (простите) №28: Докажите, что в ортоцентрическом тетраэдре (в котором все высоты пересекаются в одной точке) окружности девяти точек граней лежат на одной сфере
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. False news often spreads via public groups, or chats, with potentially fatal effects. The channel appears to be part of the broader information war that has developed following Russia's invasion of Ukraine. The Kremlin has paid Russian TikTok influencers to push propaganda, according to a Vice News investigation, while ProPublica found that fake Russian fact check videos had been viewed over a million times on Telegram. Ukrainian forces have since put up a strong resistance to the Russian troops amid the war that has left hundreds of Ukrainian civilians, including children, dead, according to the United Nations. Ukrainian and international officials have accused Russia of targeting civilian populations with shelling and bombardments. 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.
from id
