Cho hàm số \(y=f\left( x \right)\) có đồ thị như h...
Câu hỏi: Cho hàm số \(y=f\left( x \right)\) có đồ thị như hình vẽ. Hàm số \(y=f\left( x \right)\) dồng biến trên khoảng nào dưới đây?![](data:image/png;base64,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)
A
\(\left( -2;2 \right)\)
B
\(\left( -\infty ;0 \right)\)
C
\(\left( 0;2 \right)\)
D \(\left( 2;+\infty \right)\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG môn Toán THPT Chuyên Thái Bình - lần 5 năm 2018 (có lời giải chi tiết)