Tìm điểm cực tiểu của hàm số \(y = f(x)\) biết nó...
Câu hỏi: Tìm điểm cực tiểu của hàm số \(y = f(x)\) biết nó có đồ thị như hình bên.![](data:image/png;base64,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)
A. x = 0
B. x = 1
C. x = 2
D. x = - 1
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Tôn Đức Thắng