论文部分内容阅读
函数是中学数学教学的主线,是中学数学的核心内容,是高中数学的基础,利用函数的性质解决函数问题一直是高考的热点与重点,函数的奇偶性广泛存在于高考数学问题中。利用函数的奇偶性是快速高效解决函数问题的有力工具。在学习奇偶性时,不少学生顾此失彼,尤其判断函数奇偶性,要三思而后行,把握好下面几个“注重”。一、注重函数的定义域“定义域关于原点对称”是函数具有奇偶性的必要条件,所以“定义域优先”是判断函数奇偶性的最基本原则。
Function is the main line of high school mathematics teaching, is the core of high school mathematics, is the basis of high school mathematics, the use of the nature of the function to solve the function of the question has been the focus and focus of the college entrance examination, the function of parity exists widely in mathematics math problems. The use of function parity is a powerful tool for solving function problems quickly and efficiently. In learning parity, many students give up, in particular, to determine the function of parity, think twice before, and grasp the following a few “focus ”. First, pay attention to the function of the domain “Domain on the origin of symmetry ” is a necessary condition of the function has parity, so “domain priority ” is the most basic principle to determine the function of parity.