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).
Some privacy experts say Telegram is not secure enough During the operations, Sebi officials seized various records and documents, including 34 mobile phones, six laptops, four desktops, four tablets, two hard drive disks and one pen drive from the custody of these persons. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. The Securities and Exchange Board of India (Sebi) had carried out a similar exercise in 2017 in a matter related to circulation of messages through WhatsApp. The regulator said it had received information that messages containing stock tips and other investment advice with respect to selected listed companies are being widely circulated through websites and social media platforms such as Telegram, Facebook, WhatsApp and Instagram.
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