Задача. Дан параллелограмм 𝐴𝐵𝐶𝐷. На стороне 𝐴𝐷 выбрана точка 𝑋 таким образом, что ∠𝑋𝐶𝐷 = ∠𝐵𝐶𝐴. Прямые 𝐶𝑋 и 𝐴𝐵 пересеклись в точке 𝑌. Точка 𝑂 центр описанной окружности треугольника 𝐴𝑋𝑌. Докажите, что прямая 𝐶𝑂 перпендикулярна прямой 𝐵𝐷.
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Задача. Дан параллелограмм 𝐴𝐵𝐶𝐷. На стороне 𝐴𝐷 выбрана точка 𝑋 таким образом, что ∠𝑋𝐶𝐷 = ∠𝐵𝐶𝐴. Прямые 𝐶𝑋 и 𝐴𝐵 пересеклись в точке 𝑌. Точка 𝑂 центр описанной окружности треугольника 𝐴𝑋𝑌. Докажите, что прямая 𝐶𝑂 перпендикулярна прямой 𝐵𝐷.
Желаем вам получить удовольствие от выбора подарков 🎁
He floated the idea of restricting the use of Telegram in Ukraine and Russia, a suggestion that was met with fierce opposition from users. Shortly after, Durov backed off the idea. Soloviev also promoted the channel in a post he shared on his own Telegram, which has 580,000 followers. The post recommended his viewers subscribe to "War on Fakes" in a time of fake news. The perpetrators use various names to carry out the investment scams. They may also impersonate or clone licensed capital market intermediaries by using the names, logos, credentials, websites and other details of the legitimate entities to promote the illegal schemes. DFR Lab sent the image through Microsoft Azure's Face Verification program and found that it was "highly unlikely" that the person in the second photo was the same as the first woman. The fact-checker Logically AI also found the claim to be false. The woman, Olena Kurilo, was also captured in a video after the airstrike and shown to have the injuries. Crude oil prices edged higher after tumbling on Thursday, when U.S. West Texas intermediate slid back below $110 per barrel after topping as much as $130 a barrel in recent sessions. Still, gas prices at the pump rose to fresh highs.
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