3. Show the following: = n(n+1)/2. i=1 = n(n+1)(2n+1)/6. H What about IM where k is...

 

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3. Show the following: = n(n+1)/2. i=1 = n(n+1)(2n+1)/6. H What about IM where k is a positive integer? See also problem 6 below. 3. Show the following: = n(n+1)/2. i=1 = n(n+1)(2n+1)/6. H What about IM where k is a positive integer? See also problem 6 below.