до вписаного чотирикутника ABCD проведено прямі PA, PB, PC, PD, які перетинають його описане коло в E, F, G, H. доведіть, що точки перетину діагоналей M і N цих 4кутників колінеарні з P.
до вписаного чотирикутника ABCD проведено прямі PA, PB, PC, PD, які перетинають його описане коло в E, F, G, H. доведіть, що точки перетину діагоналей M і N цих 4кутників колінеарні з P.
One thing that Telegram now offers to all users is the ability to “disappear” messages or set remote deletion deadlines. That enables users to have much more control over how long people can access what you’re sending them. Given that Russian law enforcement officials are reportedly (via Insider) stopping people in the street and demanding to read their text messages, this could be vital to protect individuals from reprisals. The picture was mixed overseas. Hong Kong’s Hang Seng Index fell 1.6%, under pressure from U.S. regulatory scrutiny on New York-listed Chinese companies. Stocks were more buoyant in Europe, where Frankfurt’s DAX surged 1.4%. 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. Telegram, which does little policing of its content, has also became a hub for Russian propaganda and misinformation. Many pro-Kremlin channels have become popular, alongside accounts of journalists and other independent observers. The Russian invasion of Ukraine has been a driving force in markets for the past few weeks.
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