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函数的奇偶性是一类函数的重要几何特性.奇偶函数的概念出现在高一《数学》第一册.教材只作一般介绍,未加深入讨论.配备的习题也较少.致使学生在判别函数奇偶性时,出现一些失误.本文就这个问题谈谈需注意的几个问题,供参考.一需注意函数的定义域例1 判断函数 f(x)=(1+x)((1-x)/(1+x))~(1/2)
The parity of a function is an important geometric characteristic of a class of functions. The concept of a parity function appears in the first volume of Mathematics for Mathematics 1. The teaching material is only for general introduction, without further discussion. There are also fewer exercises for the student. When the function parity, there are some mistakes. This article on this issue to talk about a few issues that need attention, for reference. A need to pay attention to the definition of the function domain Example 1 to determine the function f (x) = (1 + x) ((1- x)/(1+x))~(1/2)