Question icon
Grade 10Algebra

Answer this-p(n,n)=5040 please.... I tried this but I couldn`t

Profile image of Rathna jaivel
8 Years agoGrade 10
Answers icon

1 Answer

Profile image of Arun
8 Years ago
Dear student
 
P(n,n) means nPn
hence P(n,n) = n!/(n-n)!
= n!/0! = n!
Since
n! = 5040
Hence
n = 7
 
Regards
Arun (askIITians forum expert)