解决抽象函数定义域的问题,不少学生在高一新课的时候不能理解,即使到了高三总复习的时候也是经常出错,究其根本原因还是学生对函数的定义及此类题型的解法策略未能真正掌握。函数的定义是:一般的,设A、B是两个非空数集,如果按照某种确定的对应关系f,使对于集合A中 To solve the problem of abstract function definition domain, many students cannot comprehend when they are in a new high school class. Even when they are reviewing in the third year, they often make mistakes. The root cause is the definition of the function of the students and the solution to such problems. Failed to master it. The definition of the function is: In general, let A and B be two non-null data sets, if we follow a certain certain correspondence f, make it for the set A