Основное тригонометрическое тождество🦾
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![[Школково ЕГЭ, ОГЭ, олимпиады] Тригонометрия с нуля и до ЕГЭ за 4 часа | №6, 7, 13 из ЕГЭ 2024 по математике](https://sun9-72.userapi.com/impg/Dcc8ORxN2zXGDkki9zSeJp2cDtFok6FqqVDRJg/mWCE7uI-2LU.jpg?size=320x240&quality=95&keep_aspect_ratio=1&background=000000&sign=151a768ce8690bfa88c2016e02763594&c_uniq_tag=uOgVHG3JO4VxLEJubZgQ9XcZiMhTvQK-gYsrX4f1pyc&type=video_thumb)
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