Hàm số \(y=f(x)\) có bảng biến thiên như hình bên....
Câu hỏi: Hàm số \(y=f(x)\) có bảng biến thiên như hình bên. Tìm m để phương trình \(f(x) + m = 0\) có ba nghiệm phân biệt.![](data:image/png;base64,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)
A. (- 1;2)
B. (- 2;1)
C. [- 1;2)
D. (- 2;1]
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Tôn Đức Thắng