Question

Find the maximum number of diagonals that ca
using the formula
If (n+3) 1 = 20 (n+1)! find the value of n.
A die whose faces are numbered from 1 to​

Answer 1

Answer:

n=2

Step-by-step explanation:

(n+3)!=20(n+1)!

(n=3)(n+2)(n+1)!=20 (n+1)!

(n+3)(n+2)=20