Cho hàm số \(y = a{x^4} + b{x^2} + c\) có đồ thị n...
Câu hỏi: Cho hàm số \(y = a{x^4} + b{x^2} + c\) có đồ thị như hình bên. Khẳng định nào sau đây là đúng?![](data:image/png;base64,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)
A. Hàm số không có cực đại
B. Hàm số đạt cực đại bằng 0 tại x = 1
C. Hàm số đạt cực đại bằng 0 tại x = -1
D. Hàm số đạt cực đại bằng 0 tại x = 0
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Hoàng Văn Thụ