#Evaluate EX 2

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brave pilot
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i followed through with the formula n(n+1)/2 but then the next statement has the denominator as 6, stupid question but why? and how?

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lethal ermineBOT
fringe epoch
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https://youtu.be/TeF09H13qyI this is a common formula

YouTube
Math Easy Solutions
Sum of the squares of "n" Consecutive integers - Simple Proof

In this video I show the proof for determining the formula for the sum of the squares of "n" consecutive integers, i.e. 1^2 + 2^2 + 3^2 +.... + n^2. This is a pretty abstract proof and makes use of the useful "telescoping" or collapsing sum which I illustrate in the video. The formula for the sum of squares comes up very often in calculus so it'...

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brave pilot
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thanks

past fjord
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.close