摘要
本文通过详尽的实例,讲明了辅助函数在证明等式中、在求函数表达式中、在证明不等式中、在确定参数式范围中和在几何中的运用。
Introducing accessorial function to solve practical problems is the general embodiment for teaching ability, and it is also one of the efficient ways to realize problem transformation. This paper explains the applications of accessorial function in proving equation, searching function expression, proving inequation, confirming parameter extension and geometry by using elaborate examples.
出处
《河南教育学院学报（自然科学版）》
2003年第4期10-12,共3页
Journal of Henan Institute of Education(Natural Science Edition)
关键词
辅助函数
函数表达式
不等式
参数式范围
几何
accessorial function application
function expression
equation and inequation
geometry and parameter
