【
Abstract
】
：
In order to better understand and apply Lagrange's mean value theorem
，
this paper will summarize and explain its application in various problems by expounding the definition of Lagrange's mean value theorem
．
For example
，
Lagrange's mean value theorem expounds the relationship between function change
and derivative
which can be used to study functions
，
and problems such as extreme value
，
monotonicity and boundedness of functions can be explained by it
，
and fun
拉格朗日中值定理的应用-7176字.docx