Help with a Combinatorics Problem

Revision en2, by _namespace, 2017-03-19 16:44:25

Hi, can anyone help with this. Simplifying the formula. Thanks

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en2 English _namespace 2017-03-19 16:44:25 26 Tiny change: 'nt-349524)\nThanks' -> 'nt-349524). Simplifying the formula.\nThanks' (published)
en1 English _namespace 2017-03-19 16:43:04 128 Initial revision (saved to drafts)