Задача. Дан выпуклый четырехугольник 𝐴𝐵𝐶𝐷. Известно, что окружности, вписанные в треугольники 𝐴𝐵𝐶 и 𝐴𝐷𝐶 касаются друг друга. Докажите, что окружности, вписанные в треугольники 𝐴𝐵𝐷 и 𝐶𝐷𝐵 также касаются друг друга.
Пусть первые снежные сугробы добавят вам новогоднего настроения ☃️
Задача. Дан выпуклый четырехугольник 𝐴𝐵𝐶𝐷. Известно, что окружности, вписанные в треугольники 𝐴𝐵𝐶 и 𝐴𝐷𝐶 касаются друг друга. Докажите, что окружности, вписанные в треугольники 𝐴𝐵𝐷 и 𝐶𝐷𝐵 также касаются друг друга.
Пусть первые снежные сугробы добавят вам новогоднего настроения ☃️
That hurt tech stocks. For the past few weeks, the 10-year yield has traded between 1.72% and 2%, as traders moved into the bond for safety when Russia headlines were ugly—and out of it when headlines improved. Now, the yield is touching its pandemic-era high. If the yield breaks above that level, that could signal that it’s on a sustainable path higher. Higher long-dated bond yields make future profits less valuable—and many tech companies are valued on the basis of profits forecast for many years in the future. 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. Ukrainian forces successfully attacked Russian vehicles in the capital city of Kyiv thanks to a public tip made through the encrypted messaging app Telegram, Ukraine's top law-enforcement agency said on Tuesday. Stocks closed in the red Friday as investors weighed upbeat remarks from Russian President Vladimir Putin about diplomatic discussions with Ukraine against a weaker-than-expected print on U.S. consumer sentiment. You may recall that, back when Facebook started changing WhatsApp’s terms of service, a number of news outlets reported on, and even recommended, switching to Telegram. Pavel Durov even said that users should delete WhatsApp “unless you are cool with all of your photos and messages becoming public one day.” But Telegram can’t be described as a more-secure version of WhatsApp.
from tw
