Cho hàm số \(f(x)\), bảng xét dấu của \(f'(x)\) nh...
Câu hỏi: Cho hàm số \(f(x)\), bảng xét dấu của \(f'(x)\) như sau:![](data:image/png;base64,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)
A. \(\left( {4; + \infty } \right)\)
B. (- 2;1)
C. (2;4)
D. (1;2)
Câu hỏi trên thuộc đề trắc nghiệm
Đề kiểm tra 1 tiết Chương 1 Giải tích 12 năm 2019 Trường THPT Chà Cang