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Combinations bidirectional
07-14-2020, 02:55 PM
Post: #1
Combinations bidirectional
Helo
COMB(n,r) gives n!/(r!(n-r)!)
But if I put
2*n!/(r!(n-r)!) how can I get
2*COMB(n,r)
Is it possible?

Thanks very much
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07-17-2020, 12:33 AM
Post: #2
RE: Combinations bidirectional
(07-14-2020 02:55 PM)Tonig00 Wrote:  Helo
COMB(n,r) gives n!/(r!(n-r)!)
But if I put
2*n!/(r!(n-r)!) how can I get
2*COMB(n,r)
Is it possible?

Thanks very much

No
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