Cho hàm số y = f(x) có bảng biến thiên sau
Câu hỏi: Cho hàm số y = f(x) có bảng biến thiên sau![](data:image/png;base64,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)
A. 1
B. -1
C. 0
D. -5/2
Câu hỏi trên thuộc đề trắc nghiệm
Đề tập huấn thi THPTQG môn Toán năm 2019 Sở GD&ĐT TP. Hồ Chí Minh - Đề số 1A. 1
B. -1
C. 0
D. -5/2
Câu hỏi trên thuộc đề trắc nghiệm
Đề tập huấn thi THPTQG môn Toán năm 2019 Sở GD&ĐT TP. Hồ Chí Minh - Đề số 1