Cho hàm số y = f(x) có bảng biến thiên như sau:
Câu hỏi: Cho hàm số y = f(x) có bảng biến thiên như sau:![](data:image/png;base64,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)
A. m < -1, m = 2
B. \(m \le - 1,m = 2\)
C. \(m \le 2.\)
D. m < 2
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán lần 1 Trường THPT Ngô Quyền - Hải Phòng