Задача 46: Автор - GeoGen, Ким Пётр, Прозоров Роман
В треугольнике ABC I - центр вписанной окружности, а D - её точка касания со стороной BC. Касательная из D к окружности (AI) пересекает AI в точке E. Докажите, что (DEI) касается (ABC).
Задача 46: Автор - GeoGen, Ким Пётр, Прозоров Роман
В треугольнике ABC I - центр вписанной окружности, а D - её точка касания со стороной BC. Касательная из D к окружности (AI) пересекает AI в точке E. Докажите, что (DEI) касается (ABC).
WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world. But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. Under the Sebi Act, the regulator has the power to carry out search and seizure of books, registers, documents including electronics and digital devices from any person associated with the securities market. Given the pro-privacy stance of the platform, it’s taken as a given that it’ll be used for a number of reasons, not all of them good. And Telegram has been attached to a fair few scandals related to terrorism, sexual exploitation and crime. Back in 2015, Vox described Telegram as “ISIS’ app of choice,” saying that the platform’s real use is the ability to use channels to distribute material to large groups at once. Telegram has acted to remove public channels affiliated with terrorism, but Pavel Durov reiterated that he had no business snooping on private conversations. 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.
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