Đường cong trong hình bên là đồ thị của một hàm số...
Câu hỏi: Đường cong trong hình bên là đồ thị của một hàm số trong bốn hàm số được liệt kê ở bốn phương án A, B, C, D dưới đây. Hỏi hàm số đó là hàm số nào? ![](data:image/jpeg;base64,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)
A \(y = {x^3} - 3{x^2} - 1\)
B \(y = {x^4} - 2{x^2} - 1\)
C \(y = {x^4} + 2{x^2} - 1\)
D \(y = {x^2} - 1\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG môn Toán năm 2019 - Thầy Chí - Đề số 7