(start off array l Rightarrow sin Acos C + sin Ccos A = 2cos Asin C Leftrightarrow sin Acos C = cos Asin C;(*)close array )T?t C?200 ?? 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? sixT?t C?Tin H?c L?p 6Tin H?c L?p 7Tin H?c L?p 8Tin H?c L?p 9Tin H?c L?p 10Tin H?c L?p 11Tin H?c L?p