Given the function y = x2 + ax + 3 about X, where - 1 ≤ x ≤ 1, try to find the maximum and minimum of the function under the following conditions respectively (1)0<a<2(2)a>2
Let f (x) = y = x2 + ax + 3 = (x + A / 2) ^ 2-A ^ 2 / 4 + 3
Axis of symmetry x = - A / 2
(1)0
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