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Combinations bidirectional - Printable Version

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Combinations bidirectional - Tonig00 - 07-14-2020 02:55 PM

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

RE: Combinations bidirectional - CyberAngel - 07-17-2020 12:33 AM

(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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