Cho hàm số \(y=f(x)\) liên tục trên R và có đồ thị...
Câu hỏi: Cho hàm số \(y=f(x)\) liên tục trên R và có đồ thị như hình vẽ![](data:image/png;base64,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)
A. [0;4]
B. \(\left\{ 0 \right\} \cup \left( {4; + \infty } \right)\)
C. \(\left[ {4; + \infty } \right)\)
D. {0;4}
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Chuyên Quang Trung - Bình Phước lần 3