Question 1206386

combination

{{{C(n,k ) =(n!)/(k!(n - k)!)}}} where {{{n=28}}} and {{{k=20}}}

{{{C(28,20)=(28!)/(20!(28 - 20)!)}}}

{{{C(28,20)=(28!)/(20!(8)!)}}}

{{{C(28,20)=3108105}}}