摘要
本文给出了积分上限趋于下限时三种形式的第二积分中值定理中ζ的性态。即当ｆ（α）·ｇ（α）≠０时，对于中值公式有对于中值公式有。而当ｆ′（α）ｇ（α）≠０时。
In this article.we give ζ 's behaviors in the second integral mean value theorems of three forms as the integral upper limits tend to the lower limits. That is,when f(α)g(α) ≠0, for the mean value formula,we have ;for the mean value formula we have. And when f'(α)g(α)≠0, for the mean value formula
