Cho hàm số y = f(x) xác định, liên tục trên R và c...
Câu hỏi: Cho hàm số y = f(x) xác định, liên tục trên R và có bảng biến thiên :![](data:image/png;base64,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)
A. Hàm số có giá trị cực đại bằng 1.
B. Hàm số có đúng hai cực trị.
C. Hàm số có giá trị cực đại bằng 2.
D. Hàm số không xác định tại x = 1
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG môn Toán năm 2019 Trường THPT Trần Hưng Đạo