Окружности ω1 и ω2 не имеют общих точек. Прямая l пересекает их точках A, B и C, D. (!) существует точка X, независящая от выбора прямой l, такая, что ∠AXC = ∠BXD
Окружности ω1 и ω2 не имеют общих точек. Прямая l пересекает их точках A, B и C, D. (!) существует точка X, независящая от выбора прямой l, такая, что ∠AXC = ∠BXD
As the war in Ukraine rages, the messaging app Telegram has emerged as the go-to place for unfiltered live war updates for both Ukrainian refugees and increasingly isolated Russians alike. Telegram Messenger Blocks Navalny Bot During Russian Election But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. Unlike Silicon Valley giants such as Facebook and Twitter, which run very public anti-disinformation programs, Brooking said: "Telegram is famously lax or absent in its content moderation policy." Some privacy experts say Telegram is not secure enough
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