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.
以上小编给大家分享的备考新版gre数学重要考点,大家可以踊跃补充相互补给;很多新版gre数学复习考点都是高中时候学到的知识点,只要努力相信新版gre数学部分是难不倒我们国内考生的。
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