【摘要】 涉及微分中值定理的证明方法有很多,而借助辅助函数是最为常用的技巧.将介绍三种方法,处理相关问题非常有效.更多还原

【Abstract】 There are a lot of theorem identification methods of value involve the differential, but drawing support from auxiliary function is the commonly most used skill. This text will introduce three kinds of methods , it is very effective to deal with the relevant problem.更多还原