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#1 2007-03-20 07:43:18
- Zev
- Guest
nCr help?
Find n:
nC5 = nC7
#2 2007-03-20 08:13:13
- JaneFairfax
- Member
- Registered: 2007-02-23
- Posts: 6,868
Re: nCr help?
You know that
So find n such that 5 = n − 7. 
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