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排列组合是高中数学中相对独立且难度较大的内容,它研究的对象以及研究问题的方法和学生已有的知识有很大区别,这一部分内容虽然分量不重,与旧知识联系也很少,但联系实际,生动有趣,解题过程中所体现的思维方法和解题策略对整个数学思想的形成和建立起着至关重要的作用.本文从一些简单的例题入手,归纳、总结、整理出排列组合问题的基本题型及解法.
Permutation and combination is relatively independent and difficult in high school mathematics. Its research objects and methods for researching problems are very different from students’ existing knowledge. Although this part is not heavy, it is rarely associated with old knowledge. , But with the actual situation, it is vivid and interesting. The thinking methods and problem-solving strategies embodied in the process of solving questions play a crucial role in the formation and establishment of the whole mathematical idea. This article starts with some simple examples, summarizes, summarizes, and sorts out the basic questions and solutions to the problem of permutations and combinations.