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What is the factorial form of… | ClassNotes
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Sep 18, 2022
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What is the factorial form of n(n-1)(n-2).....(n-r+1)?
Difficulty: Easy
A:
$\frac{n!}{r!}$
B:
$\frac{n!}{(n-r)!}$
C:
$\frac{(n-1)!}{(n-r)!}$
D:
$\frac{(n+1)!}{(n+r)!}$
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ID: 63273dbaca83163ac3a123ab
