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在高中数学中数与形是有机的整体,构建二者之间的转换关系是开拓创新的需要.我们在解题过程中可以借助形来辅助数,也可以借助数来辅助形,从而简化解题过程.这种应用形式基本上分为用几何方法解决代数问题,或是用代数方法解决几何问题.一、用几何方法解决代数问题1.利用数轴解决集合的有关运算和集合的关系问题一般用数轴来表示集合,两个区域相交的部分则表示两集合有公共元素或解集,两个区域相离的部分则表示两个集合没
In mathematics, high school mathematics, numbers and shapes are organic whole, so it is a need of pioneering and innovating to construct the transformation relation between the two. In the process of problem solving, we can use the form to assist the number, The process is basically divided into the use of geometric methods to solve algebraic problems, or use algebraic methods to solve the geometric problems.General method to solve algebraic problems The use of the number of axes to solve the collection of operations and the relationship between the collection of General The number of axes to represent the collection, the intersection of the two regions of the part of the two sets that have a common element or solution set, the two regions separated from the part of the two sets that did not