Квадрат разрезан на прямоугольники. В каждом прямоугольнике отмечена одна сторона. Доказать, что сумма длин отмеченных сторон не меньше стороны квадрата.
Квадрат разрезан на прямоугольники. В каждом прямоугольнике отмечена одна сторона. Доказать, что сумма длин отмеченных сторон не меньше стороны квадрата.
BY Непрерывное математическое образование
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"He has kind of an old-school cyber-libertarian world view where technology is there to set you free," Maréchal said. Telegram has gained a reputation as the “secure” communications app in the post-Soviet states, but whenever you make choices about your digital security, it’s important to start by asking yourself, “What exactly am I securing? And who am I securing it from?” These questions should inform your decisions about whether you are using the right tool or platform for your digital security needs. Telegram is certainly not the most secure messaging app on the market right now. Its security model requires users to place a great deal of trust in Telegram’s ability to protect user data. For some users, this may be good enough for now. For others, it may be wiser to move to a different platform for certain kinds of high-risk communications. "The argument from Telegram is, 'You should trust us because we tell you that we're trustworthy,'" Maréchal said. "It's really in the eye of the beholder whether that's something you want to buy into." 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. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content.
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