Calculating Permutations
A teacher has four books-A, B, C, and D—to assign to four students in...
Mathematics, 21.04.2020 20:25 xxxanitaxxx
Calculating Permutations
A teacher has four books-A, B, C, and D—to assign to four students in any order he prefers.
Set S includes all possible arrangements of the four books.
Set X includes all possible arrangements when book C is chosen first and D is chosen second.
Which notation is correct?
If book C is chosen first and D is chosen second, in how many ways can the teacher assign the books?
Answers: 2
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