Question

Evaluate C(n, n).

i got n.. i'm not sure?

Answer 1

remember:\[C(n,r) = {n! \over (n - r)!} \]

Answer 2

So, C(n,n) is simply:\[n! \over (n - n)!\]Know what n - n is?

Answer 3

0.

Answer 4

@mynameisjanelle Pardon me, I told the thing for \(P(n,r)\).

Answer 5

\[C(n,r) = {n! \over (n - r)!r!} \implies C(n,n)={n! \over (n - n)!n!}\]

Answer 6

so the answer is 0 but the equation was wrong?

Answer 7

No, the answer is not 0.

Answer 8

1?

Answer 9

yes.