Cho hàm số y = f (x) có bảng biế...
Câu hỏi: Cho hàm số y = f (x) có bảng biến thiên như sau:![](data:image/png;base64,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)
A. Hàm số đã cho có một điểm cực đại và một điểm cực tiểu.
B. Hàm số đã cho không có cực trị.
C. Hàm số đã cho có một điểm cực đại và không có điểm cực tiểu.
D. Hàm số đã cho có một điểm cực tiểu và không có điểm cực đại.
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán lần 1 Trường THPT Ngô Quyền - Hải Phòng