Posted by **Jon** on Wednesday, March 5, 2008 at 1:31pm.

Evaluate C(12,10).

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

=12!/(12-10)!10

=12!/2!2

=12*11/2*1

=66

- Algebra -
**bobpursley**, Wednesday, March 5, 2008 at 1:50pm
correct.

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