函数的奇偶性与单调性、周期性被学生美誉为学习函数的“三座大山”。较多学生对涉及奇偶性的函数问题都会束手无策。函数的奇偶性是函数的一个重要性质,常伴随着函数的其他性质出现。函数奇偶性揭示的是函数自变量与函数值之间的一种特殊的数量规律,直观反映的是函数 Function of the parity and monotonous, cyclical student reputation as a learning function “three mountains ”. More students can not do anything about function problems involving parity. The parity of a function is an important property of the function, often accompanied by other properties of the function. The function parity reveals a special quantitative law between function arguments and function values. It directly reflects the function