Cho hàm số y = f(x) xác định, liên tục trên R\{1}...
Câu hỏi: Cho hàm số y = f(x) xác định, liên tục trên R\{1} và có bảng biến thiên như hình dưới đây.![](data:image/png;base64,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)
A. \(S = \left( { - 1;1} \right)\)
B. \(S = \left[ { - 1;1} \right]\)
C. S = {1}
D. S = {-1; 1}
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG môn Toán năm 2019 cụm 8 Trường Chuyên ĐB Sông Hồng