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中学数学中的排列组合是一类思考方式较为独特的问题,它对分析能力要求较高,解法也非常灵活,是高考的难点之一.因此,恰当地选择思想方法,对于解决排列组合问题至关重要.下面结合几个例子谈谈排列组合中常用的十种
The permutation and combination of middle school mathematics is a unique problem of a type of thinking. It has a higher requirement for analytical ability and a very flexible solution. It is one of the difficulties in the college entrance examination. Therefore, the proper selection of ideas and methods can solve problems of permutation and combination. Important. Here are some ten examples commonly used in permutations and combinations.