摘要
有理分式函数的极限计算问题是极限教学中的一个难点,总结了它的计算方法,并结合具体的实例探讨了它的反问题.对于自变量趋于无穷时的计算方法——分子分母同除法,将其推广应用于其它分式函数极限的求解问题.
The limit calculation of rational fractional function is a difficult problem in the limit teaching.For this problem,summarizes the calculation methods and discusses the inverse problems with specific examples.Then for the case that the independent variable tends to infinity,generalizes the method on numerator and denominator simultaneously divided to treat the limit calculation of other fractional functions.
作者
杨占英
胡军浩
牛艳庆
YANG Zhan-ying HU Jun-hao NIU Yan-qing(School of Mathematics and Statistics, South-central University for Nationalities, Wuhan 430074, Chin)
出处
《高师理科学刊》
2017年第10期55-58,共4页
Journal of Science of Teachers'College and University
基金
国家自然科学基金资助项目(11401595)
中南民族大学教学研究项目(JYX16023)
关键词
有理分式函数
极限
分子分母同除法
rational fractional function
limit
method on numerator and denominator simultaneously divided