What are the Subsets with only six elements of the number sequence 1-30 ?
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Expert's answer
2011-07-21T04:43:51-0400
The total number of subsets is C630 = 30!/6!(30-6)! = 30!/6!24! = 593775 The subset is for example 1 2 3 4 5 6 or 9 8 7 6 5 2. We consider that the subsets with the same elements but different order of elements are the same.
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