Find the value of  

`P( n , n -1 )`

Find the value of : (1+i)^n, n inN

The value of P(n,n) is

The value of P(n, n – 1) is

Find the value of ( 1 - iota )^n ( 1 - 1/iota )^n (A)  2^n   ( B )   1/2^n   ( c )   0   ( D )   1

Find the value of prod_(n-2)^(n) (1 - (1)/(n^(2)))

Find the value of if n if "^(n+1)P_3 = 4^(n)P_2

Find the value of n such that "(i) "^(n)P_(5) =42 xx ""^(n)P_(3), n gt 4 " (ii) "(""^(n)P_(4))/(" "^(n-1)P_(4))=(5)/(3), n gt 4.