Hàm số \(y = \left( {m - 1} \right){x^4} + \left( {{m^2} - 2m} \right){x^2} + {m^2}\) có ba điểm cực trị khi :
A.\(\left[ \begin{array}{l}m < 0\\1 < m < 2\end{array} \right.\)
B.\(\left[ \begin{array}{l}m < - 1\\1 < m < 2\end{array} \right.\)
C.\(\left[ \begin{array}{l} - 1 < m < 1\\m > 2\end{array} \right.\)
D.\(\left[ \begin{array}{l}0 < m < 1\\m > 2\end{array} \right.\)
A.\(\left[ \begin{array}{l}m < 0\\1 < m < 2\end{array} \right.\)
B.\(\left[ \begin{array}{l}m < - 1\\1 < m < 2\end{array} \right.\)
C.\(\left[ \begin{array}{l} - 1 < m < 1\\m > 2\end{array} \right.\)
D.\(\left[ \begin{array}{l}0 < m < 1\\m > 2\end{array} \right.\)
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