函数的奇偶性是一类函数的一条重要几何特性，也是高考的必考内容，函数奇偶性的判断必须严格依照“奇函数”、“偶函数”的定义进行．但学生往往在具体操作过程中，出现一些失误，现将部分失误分析如下，以期引起注意．1忽视定义域致错奇偶性．误解f(x)是偶函数．剖析奇偶函数 The parity of a function is an important geometric feature of a class of functions, and it is also a mandatory examination content of the college entrance examination. The judgment of function parity must be strictly in accordance with the definitions of “odd function” and “even function”. However, students often make mistakes in the course of specific operations, and now analyze some of the mistakes as follows in order to attract attention. 1 Ignore the definition of domain mis-parity. Misunderstanding f(x) is an even function. Parsing odd and even functions