Question

Calcule o valor de A 8,6

Answer 1

An,p=n!/(n-p)!
A8,6=8!/(8-6)!
A8,6=8!/2!
A8,6=8.7.6.5.4.3.2!/2!
A8,6=8.7.6.5.4.3
A8,6=20160