Cho hàm số \(y=f(x)\) có bảng biến thiên như hình...
Câu hỏi: Cho hàm số \(y=f(x)\) có bảng biến thiên như hình bên dưới. Hàm số đã cho đồng biến trên khoảng nào dưới đây?![](data:image/png;base64,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)
A. \(\left( { - 1; + \infty } \right).\)
B. \((-1;1)\)
C. \(\left( { - \infty ;1} \right).\)
D. \(\left( {1; + \infty } \right).\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Chuyên Quang Trung - Bình Phước lần 2