解综合题时,我们经常会遇到有关动点的题目,应该如何转化才能沟通已知和未知的联系,从而使问题得到解决呢?我认为“化动为静,寻找解题思路。”是解这一类题的关键。下面仅举两例分析: 例1 如图,在平行四边形ABCD中,AB=4,AD=3,E是AB边上一点(不能与A、B重合)设AE=x,DE的延长线交CB延长线于F,设CF=y, When we solve a comprehensive problem, we often encounter questions about moving points, how should we transform them so that we can communicate the known and unknown connections so that the problems can be solved? I think that “the movement is static and we are looking for problem-solving ideas.” The key to solving this type of problem. The following are only two examples of analysis: Example 1 As shown in the figure, in the parallelogram ABCD, AB = 4, AD = 3, E is a point on the AB side (can not be coincident with A, B) AE = x, DE extension line CB extension line at F, set CF=y,