Question

Evaluate C(n, n).

0
1
n

Answer 1

`C(n,r) = (n!)/(r!(n - r)!)`

`C(n,n) = (n!)/(n!(n - n)!)`

`C(n,n) = (n!)/(n!0!)`

`C(n,n) = (n!)/(n! * 1)`

`C(n,n) = (n!)/(n!)`

`C(n,n) = 1`