В треугольнике ABC I - центр вписанной окружности, а D - её точка касания со стороной BC. Отражение D относительно середины BC - точка E. A' - диаметрально противоположная точке A на окружности (ABC). G - проекция D на прямую через A' параллельную BC. Докажите, что (DEG) касается (ABC).
В треугольнике ABC I - центр вписанной окружности, а D - её точка касания со стороной BC. Отражение D относительно середины BC - точка E. A' - диаметрально противоположная точке A на окружности (ABC). G - проекция D на прямую через A' параллельную BC. Докажите, что (DEG) касается (ABC).
Multiple pro-Kremlin media figures circulated the post's false claims, including prominent Russian journalist Vladimir Soloviev and the state-controlled Russian outlet RT, according to the DFR Lab's report. False news often spreads via public groups, or chats, with potentially fatal effects. Channels are not fully encrypted, end-to-end. All communications on a Telegram channel can be seen by anyone on the channel and are also visible to Telegram. Telegram may be asked by a government to hand over the communications from a channel. Telegram has a history of standing up to Russian government requests for data, but how comfortable you are relying on that history to predict future behavior is up to you. Because Telegram has this data, it may also be stolen by hackers or leaked by an internal employee. As a result, the pandemic saw many newcomers to Telegram, including prominent anti-vaccine activists who used the app's hands-off approach to share false information on shots, a study from the Institute for Strategic Dialogue shows. "There is a significant risk of insider threat or hacking of Telegram systems that could expose all of these chats to the Russian government," said Eva Galperin with the Electronic Frontier Foundation, which has called for Telegram to improve its privacy practices.
from br
