Cho hàm số y = f(x) có đạo hàm trên R và có đồ thị...
Câu hỏi: Cho hàm số y = f(x) có đạo hàm trên R và có đồ thị hàm số y =f’(x) như hình bên. Hàm số y = f(3 – x) đồng biến trên khoảng nào dưới đây?![](data:image/png;base64,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)
A. (-2; -1)
B. (-1; 2)
C. \(\left( {2; + \infty } \right)\)
D. \(\left( { - \infty ; - 1} \right)\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi THPT QG môn Toán năm 2019 Trường THPT Chuyên Hạ Long lần 1