Задача. Про выпуклый пятиугольник 𝑅𝐴𝐷𝑂𝑆 известно, что 𝑅𝑆 = 𝑆𝑂 и ∠𝐴𝑅𝑆 = ∠𝐷𝑂𝑆 = 90°. Внутри 𝑅𝐴𝐷𝑂𝑆 взята точка 𝑇 так, что 𝑅𝑇 ⊥ 𝐴𝑆 и 𝑇𝑂 ⊥ 𝐷𝑆. Докажите, что 𝑆𝑇 ⊥ 𝐴𝐷.
Задача. Про выпуклый пятиугольник 𝑅𝐴𝐷𝑂𝑆 известно, что 𝑅𝑆 = 𝑆𝑂 и ∠𝐴𝑅𝑆 = ∠𝐷𝑂𝑆 = 90°. Внутри 𝑅𝐴𝐷𝑂𝑆 взята точка 𝑇 так, что 𝑅𝑇 ⊥ 𝐴𝑆 и 𝑇𝑂 ⊥ 𝐷𝑆. Докажите, что 𝑆𝑇 ⊥ 𝐴𝐷.
Continuing its crackdown against entities allegedly involved in a front-running scam using messaging app Telegram, Sebi on Thursday carried out search and seizure operations at the premises of eight entities in multiple locations across the country. Sebi said data, emails and other documents are being retrieved from the seized devices and detailed investigation is in progress. Asked about its stance on disinformation, Telegram spokesperson Remi Vaughn told AFP: "As noted by our CEO, the sheer volume of information being shared on channels makes it extremely difficult to verify, so it's important that users double-check what they read." READ MORE Also in the latest update is the ability for users to create a unique @username from the Settings page, providing others with an easy way to contact them via Search or their t.me/username link without sharing their phone number.
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