摘要
函数的值域是中学数学的重要内容,值域的求法很多,本文基于数学思想:方程思想及数形结合思想给出了分式函数值域的两种求法.
The value range of fractional function is very important in middle school Math. There are many solutions to the value of fractional function. This paper suggests two, based on Math thinking： equation and the combination of numbers with shapes.
出处
《宁波教育学院学报》
2008年第6期107-108,111,共3页
Journal of Ningbo Institute of Education
关键词
函数
值域
数学思想
function
value range
Math thinking
