8. Give a closed form for the sum You may assume that Σk=1 k = n(n+1) 2 1x2+2x3+ ... k(k + 1) and E=1 k2 = n(n+1) 2

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Question
8.
Give a closed form for the sum
'n
You may assume that Σ-₁ k =
=
k=1
n(n+1)
2
1x2+2x3+...k(k+1)
· and E=1 k2
=
n(n+1)
2
Transcribed Image Text:8. Give a closed form for the sum 'n You may assume that Σ-₁ k = = k=1 n(n+1) 2 1x2+2x3+...k(k+1) · and E=1 k2 = n(n+1) 2
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