不等式(组)里的新定义问题,是中考的热点.下面我们一起来看看吧.例1(2013年十堰)足义:对于买数a,符号[a]表示不大于a的最大整数.例如[5.7]=5,[5]=5,[-π]=-4.(1)如果[a]=-2,那么a的取值范围是(2)如果[(x+1)/2]=3,求满足条件的所有正整数x.分析:(1)根据[a]=-2,得出-2≤a<-1;(2)根据题意得出3≤(x+1)/2<4,求出x的取值范围.从而得出满足条件的所有正整数x. Example 1 (2013 in Shiyan) Footnotes: For the number a, the notation [a] means the largest integer not greater than a. For example, [5.7] = 5, [5] = 5, [- π] = - 4. (1) If [a] = - 2 then the range of a is (2) 2] = 3, find all the positive integers that satisfy the condition x. Analysis: (1) According to [a] = - 2, we get -2≤a <-1; (2) 1) / 2 <4, find the range of x, and then find all positive integers x that satisfy the condition.