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序言不等关系是中学数学中重要的数量关系.高考对本内容的考查主要有:(1)一元二次不等式,要求在初中所学二次函数的基础上,掌握二次函数、二次不等式、二次方程之间的联系和区别;(2)线性规划,理解二元一次不等式对应的平面区域,能够求线性目标函数在给定区域上的最值,同时对一次分式型函数最值也要有所了解;(3)基本不等式,理解基本不等式在不等式证明、函数最
Preface to the relationship between the number of secondary mathematics is an important relationship between quantity.The college entrance examination on the contents of the test are: (1) one dollar quadratic inequality, required secondary school in the secondary function based on the grasp of quadratic function, quadratic inequality, (2) The linear programming, to understand the plane area corresponding to the binary inequality, can find the maximum value of the linear objective function in a given area, meanwhile, To understand; (3) basic inequalities, to understand the basic inequalities in the proof of inequality, the function of the most