《中学数学教学参考》 2 0 0 2年第 1 1期陈育康文《一个不等式错证引起的思考》中所论的是已知a3+b3=2 ,求证a +b≤ 2 .实际上 ,对这道题认真再思考后发现本题在补上条件后可有多样优美解法并能作进一步延伸 .思考一　根据题意本题应理解a ,b为实数 .思考二　本题的原型可见《 The “secondary mathematics teaching reference” in the second year of 2002, Chen Yukang’s “Reflections Caused by a Wrongful Inequality” is based on the knowledge that a3+b3=2 and verification of a +b≤ 2. In fact, After careful rethinking of this issue, we found that this topic can have a variety of elegant solutions and can be further extended after supplementing the conditions. Thinking on the basis of the subject of this question should be understood a, b is a real number. Thinking of the prototype of the second problem can be seen