Question: Question 6: Let k 21 be an integer and consider a sequence n1, n2,... ,nk of positive integers. Use a combinatorial proof to show that

Question 6: Let k 21 be an integer and consider a

Question 6: Let k 21 be an integer and consider a sequence n1, n2,... ,nk of positive integers. Use a combinatorial proof to show that rnk n1 + n2 ++nk 2 Hint: You will not get any miarks if you use an induction proof. For each 1 with consider the complete graph on ni vertices. How many edges does this graph have? k

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