Задача. В остроугольном треугольнике 𝐴𝐵𝐶 проведены высоты 𝐵𝐷 и 𝐶𝐸. Пусть 𝐹 и 𝐺 — точки на прямой 𝐸𝐷 такие, что 𝐵𝐹 ⊥ 𝐸𝐷 и 𝐶𝐺 ⊥ 𝐸𝐷. Докажите, что 𝐸𝐹 = 𝐷𝐺.
Задача. В остроугольном треугольнике 𝐴𝐵𝐶 проведены высоты 𝐵𝐷 и 𝐶𝐸. Пусть 𝐹 и 𝐺 — точки на прямой 𝐸𝐷 такие, что 𝐵𝐹 ⊥ 𝐸𝐷 и 𝐶𝐺 ⊥ 𝐸𝐷. Докажите, что 𝐸𝐹 = 𝐷𝐺.
For Oleksandra Tsekhanovska, head of the Hybrid Warfare Analytical Group at the Kyiv-based Ukraine Crisis Media Center, the effects are both near- and far-reaching. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. The S&P 500 fell 1.3% to 4,204.36, and the Dow Jones Industrial Average was down 0.7% to 32,943.33. The Dow posted a fifth straight weekly loss — its longest losing streak since 2019. The Nasdaq Composite tumbled 2.2% to 12,843.81. Though all three indexes opened in the green, stocks took a turn after a new report showed U.S. consumer sentiment deteriorated more than expected in early March as consumers' inflation expectations soared to the highest since 1981. In the United States, Telegram's lower public profile has helped it mostly avoid high level scrutiny from Congress, but it has not gone unnoticed. The fake Zelenskiy account reached 20,000 followers on Telegram before it was shut down, a remedial action that experts say is all too rare.
from sg
