A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office. In how many ways can the company assign 3 employees to 2 different offices?
5
6
7
8
9
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重复排列问题,可以重复的放下面,不重复的放上面,eg:3封信放5个信箱 为 5^3; 4个人搭6艘船 6^4; 本题为3个雇员,2个办公室: 2^3 =8 种(D)
重复排列问题,可以重复的放下面,不重复的放上面,eg:3封信放5个信箱 为 5^3; 4个人搭6艘船 6^4; 本题为3个雇员,2个办公室: 2^3 =8 种(D)
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