(start off array l Rightarrow sin Acos C + sin Ccos A = 2cos Asin C Leftrightarrow sin Acos C = cos Asin C;(*)end array )T?t C?two hundred ?? Thi Th? T?t Nghi?p THPT 2025 L?ch S?L?ch S? L?p 12L?ch S? L?p 11L?ch S? L?p 10L?ch S? 9L?ch S? 8L?ch S? 7L?ch S? sixH? tr?i nghi?m, h??ng nghi?p 11 SGK Ho?t ??ng tr?i nghi?m, h??ng nghi?p - K?t n?i tri th?cT?