Cho hàm số \(y=f(x)\) có đồ thị hàm số như hình vẽ...
Câu hỏi: Cho hàm số \(y=f(x)\) có đồ thị hàm số như hình vẽ![](data:image/png;base64,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)
A. 3
B. 0
C. 1
D. 2
Câu hỏi trên thuộc đề trắc nghiệm
40 câu trắc nghiệm Các dạng toán về hàm ẩn liên quan đến GTLN, GTNN của hàm số