SOLUTION: find the number of permutations. 12 as a base of P and 5 as a base also.
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Question 194351: find the number of permutations. 12 as a base of P and 5 as a base also.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the permuation formula
Plug in and
Subtract to get 7
Expand 12!
Expand 7!
Cancel
Simplify
Now multiply 12*11*10*9*8 to get 95,040
So 12 choose 5 (where order does matter) yields 95,040 unique permutations
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