Cho hàm số \(y = f(x)\) có bảng biến thiên sau:
Câu hỏi: Cho hàm số \(y = f(x)\) có bảng biến thiên sau:![](data:image/png;base64,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)
A. Hàm số có đúng hai cực trị.
B. Hàm số đạt cực tiểu tại \(x = 0\).
C. Hàm số đạt cực đại tại \(x = 4\).
D. Hàm số không có cực đại.
Câu hỏi trên thuộc đề trắc nghiệm
Thi Online Đề thi thử THPT Quốc gia 2018 môn Toán số 1