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A science book, a philosophy book, a geometry book, and a trigonometry book are to be arranged next to each other on a shelf. There are $$n$$ possible arrangements of the 4 books such that the geometry book and the trigonometry book are next to each other.
Quantity A
$$n$$
Quantity B
$$10$$
A显示答案
· 相关考点
6.3.6 捆绑法
6.3.6 捆绑法
以上解析由 考满分老师提供。
