商榷一道题的两种解法

A Discussion on Two Explanations of One Math Problem

文章指出并分析华东师范大学数学系主编的《数学分析》下册(第三版)的一道题,在两本不同解答(见[文1]、[文2])上的两个不同的典型严重错误,并给出正确的解答。

This paper points out and analyzes two different serious mistakes in one math problem of two different explanations in Mathematical Analysis （Volume Two, third edition） published by Higher Education Press, and also offers the correct explanation.