Cho hàm số y = f(x) có đạo hàm liên tục trên R. Đồ...
Câu hỏi: Cho hàm số y = f(x) có đạo hàm liên tục trên R. Đồ thị của hàm số y = f’(x) cắt Ox tại điểm (2;0) như hình vẽ. Hàm số y = f(x) đồng biến trên khoảng nào sau đây?![](data:image/png;base64,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)
A. \(\left( { - 1; + \infty } \right).\)
B. \(\left( { - \infty ;0} \right).\)
C. (-2;0).
D. \(\left( { - \infty ; - 1} \right).\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG môn Toán năm 2019 Trường THPT Bình Minh - Ninh Bình