Cho hàm số y = f(x) có đồ thị trên đoạn [-2; 4] n...
Câu hỏi: Cho hàm số y = f(x) có đồ thị trên đoạn [-2; 4] như hình vẽ. Tìm giá trị lớn nhất của hàm số y = |f(x)| trên đoạn [-2; 4] ![](data:image/png;base64,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)
A. 2
B. |f(0)|
C. 3
D. 1
Câu hỏi trên thuộc đề trắc nghiệm
Đề khảo sát chất lượng môn Toán 12 Trường THPT Đoàn Thượng - Hải Dương năm học 2017 - 2018