Cho hàm số có bảng biến thiên
Câu hỏi: Cho hàm số có bảng biến thiên![](data:image/png;base64,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)
A. \(( - \infty ;1)\)
B. (-1; 2)
C. \((3; + \infty )\)
D. (1; 3)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2018-2019 môn Toán Trường THPT Chuyên KHTN - Hà NộiA. \(( - \infty ;1)\)
B. (-1; 2)
C. \((3; + \infty )\)
D. (1; 3)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2018-2019 môn Toán Trường THPT Chuyên KHTN - Hà Nội