数形结合的应用大致分为两种情形:借助于数的精确性来阐明形的某些属性,或者借助于形的直观性来阐明数与数的某种关系.应用数形结合的思想,可以解决许多数学问题.请看下面的例题.一、利用数轴比较数的大小例1(2016年潍坊卷)实数a,b在数轴上对应点的位置如图1所示,化简|a|+(a-b)~2~(1/2)的结 The application of number combination can be roughly divided into two kinds of situations: some properties of the shape are elucidated by means of the accuracy of numbers, or some relation between numbers and numbers is clarified by means of the shape intuition.Using the idea of ​​combining figures and figures, Can solve many mathematical problems. See the following example. First, the use of the number of axes to compare the size of Example 1 (2016 Weifang volume) real a, b in the axis corresponding to the position shown in Figure 1, simplify | a | + (ab) ~ 2 ~ (1/2) of the junction