Tìm giá trị lớn nhất và giá trị nhỏ nhất của hàm số \(y = \left| {{x^2} - 2x - 3} \right|\) với \(x \in \left[ { - 2;\,\,2} \right].\)
A.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 5\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = - 5\)
B.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 4\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = 1\)
C.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 4\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = 3\)
D.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 5\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = 0\)
A.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 5\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = - 5\)
B.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 4\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = 1\)
C.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 4\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = 3\)
D.\(\mathop {\max }\limits_{\left[ { - 2;2} \right]} y = 5\,\,;\,\,\,\mathop {\min }\limits_{\left[ { - 2;2} \right]} y = 0\)
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Hóa Học lớp 12
