O_a, O_b, O_c - симметрии центра описанной окружности треугольника ABC относительно BC, AC, AB соответственно. Треугольник ABC стерли. Восстановите его по O_aO_bO_c
O_a, O_b, O_c - симметрии центра описанной окружности треугольника ABC относительно BC, AC, AB соответственно. Треугольник ABC стерли. Восстановите его по O_aO_bO_c
On Feb. 27, however, he admitted from his Russian-language account that "Telegram channels are increasingly becoming a source of unverified information related to Ukrainian events." In 2014, Pavel Durov fled the country after allies of the Kremlin took control of the social networking site most know just as VK. Russia's intelligence agency had asked Durov to turn over the data of anti-Kremlin protesters. Durov refused to do so. So, uh, whenever I hear about Telegram, it’s always in relation to something bad. What gives? Apparently upbeat developments in Russia's discussions with Ukraine helped at least temporarily send investors back into risk assets. Russian President Vladimir Putin said during a meeting with his Belarusian counterpart Alexander Lukashenko that there were "certain positive developments" occurring in the talks with Ukraine, according to a transcript of their meeting. Putin added that discussions were happening "almost on a daily basis." Telegram boasts 500 million users, who share information individually and in groups in relative security. But Telegram's use as a one-way broadcast channel — which followers can join but not reply to — means content from inauthentic accounts can easily reach large, captive and eager audiences.
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