# 新gre数学考点之排列

2011 新 gre 考试实施以来，不仅对写作部分茫然不知所措，就连我们所擅长的新 gre 数学也甚是担忧，想要 新版 gre 数学考好，复习的时候一定要把新 gre 数学考点弄扎实。下面新东方在线为大家进行介绍。 如果新版 gre 数学基本考点都没有复习到，如何能拿到分数呢?所以说，想要新版 gre 数学考好，复习的时候 一定要把新 gre 数学考点弄扎实。 Permutation of Objects The number of ways n distinct objects can be ordered is n!. Example: Number of ways 6 people can from a queue is 6!. Number of ways 5 different cars can be parked in 5 parking spaces is 5!. Remember: This does not apply if there are identical objects or ordering does not matter. Permutation with Selection The number of ways n objects drawn from a collection of m distinct objects can be ordered is m!/(m-n)!. Example: Number of ways a queue of length 3 can be formed from a group of 5 people is 5!/(5-3)!=5!/2!=5*4*3=60. Number of possible top ten list for 150 movies is 150!/(150-10)!. Remember: This does not apply if there are identical objects or ordering does not matter. 由于美国数学基础教育的难度增加导致新 gre 数学越来越难，但 gre 数学考点都是高中时候学到的知识点，考 生不要过于紧张，把基本概念弄明白，再记住一些新版 gre 数学必备的词汇，那么相信新版 gre 数学应该没有问 题。

2017年新GRE考试数学考点
2017年新GRE考试数学考点 - 2017 年新 GRE 考试数学考点:Term Term A product of coefficients and any number of variab...