Question

Discrete Math (MACM 101)

Discrete Math Question:
Given P (n , 3) = 3*P (n , 2)
What is the value of n ?

Answer 1

I hope this helps you



n!/(n-3)!=3.n!/(n-2)!


3. (n-3)!=(n-2)(n-3)!


3=n-2


n=5