The value of P(n, n – 1) is
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Step-by-step explanation:
p(n,n-1)
p^n r = n!/(n-r)!
p(n,n-1)= n!/(n-n+1)!= n!/1!=n!
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Given,
To find,
The value of
Solution,
Know that the formula of is
Apply values.
Hence, the required value is
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