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已知二次函数在某区间上的最大(小)值,求其有关参数的值是一类常见的求值问题,本文对其分类归纳并举实例说明其解法.
Knowing the maximum (small) value of a quadratic function in a certain interval, the value of its relevant parameter is a common type of evaluation problem. This paper classifies and summarizes examples to illustrate its solution.