罗增儒教授所倡导的“通过解题过程的分析去探索怎样学会解题”在教育界被认为是一个很有价值的研究课题 ,他在本刊上连续发表的一系列关于解题的文章引起了读者的浓厚兴趣 .本文是笔者运用解题分析观点的一次实践 .问题 1　入射光线ＡＣ所在直线方程为ｘ + 2 ｙ -3=0 ,它射到 Professor Luo Zengru’s advocacy of “how to learn to solve problems through the analysis of the problem solving process” is considered to be a valuable research topic in the education sector. His series of articles on solving problems have been published in this issue. The reader is very interested. This article is a practice of the author’s analysis of opinions using problem solving. Question 1 The incident light ray AC has a linear equation x + 2 y -3 = 0, and it shoots