贵刊 1 998年第 8期发表的《构造二次方程证明不等式》一文 ,读后颇受启发 .但对其“例 1　已知ａ13 ,ｂ13 ,ａｂ=29.求证 :ａ+ｂ 1 .”我们有更为简捷的证法 .分析　若能想到条件ａ 13,ｂ 13 预示着结论ａ- 13 ｂ- 13 0 ,三言两语便可说明问题 ,堪称最优证法 .证明　∵ The article “Proving Inequalities in Constructing Quadratic Equations” published in the 8th issue of the Chinese Journal of the Chinese People’s Republic of China in 1998 was very inspiring after reading it. However, it is known that “Example 1 has known a13, b13, ab=29. Proof: a+b1.” We have a simpler method of proof. If we can think of the condition a 13,13, the conclusion 13-b 13 0, three words can explain the problem, can be called the best proof.