Tìm GTLN và GTNN của hàm số \(y = {x^5} - 5{{\rm{x}}^4} + 5{{\rm{x}}^3} + 1\) trên đoạn \(\left[ { - 1;2} \right]\)
A.\(\mathop {\min }\limits_{x \in \left[ { - 1;2} \right]} y = - 10,\mathop{\max }\limits_{x \in \left[ { - 1;2} \right]} y = 2\)
B.\(\mathop {\min }\limits_{x \in \left[ { - 1;2} \right]} y = - 2,\mathop {\max }\limits_{x \in \left[ { - 1;2} \right]} y = 10\)
C.\(\mathop {\min }\limits_{x \in \left[{ - 1;2} \right]} y = - 10,\mathop {\max }\limits_{x \in \left[ { - 1;2} \right]} y = - 2\)
D.\(\mathop {\min }\limits_{x \in \left[ { - 1;2} \right]} y = - 7,\mathop {\max }\limits_{x \in \left[ { - 1;2} \right]} y = 1\)
A.\(\mathop {\min }\limits_{x \in \left[ { - 1;2} \right]} y = - 10,\mathop{\max }\limits_{x \in \left[ { - 1;2} \right]} y = 2\)
B.\(\mathop {\min }\limits_{x \in \left[ { - 1;2} \right]} y = - 2,\mathop {\max }\limits_{x \in \left[ { - 1;2} \right]} y = 10\)
C.\(\mathop {\min }\limits_{x \in \left[{ - 1;2} \right]} y = - 10,\mathop {\max }\limits_{x \in \left[ { - 1;2} \right]} y = - 2\)
D.\(\mathop {\min }\limits_{x \in \left[ { - 1;2} \right]} y = - 7,\mathop {\max }\limits_{x \in \left[ { - 1;2} \right]} y = 1\)
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