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coverge or diverge

+2

1058

1

+577

$\frac{2}{3}+\frac{4}{9}+\frac{8}{27}+...$

if it converges what is the sigma equation

OfficialBubbleTanks Mar 1, 2018

1⁺⁰ Answers

+130466

+1

Definitely converges, OBT

The geometric ratio is 2/3

The sum is

2/3 / [ 1 - 2/3] =

2/3 / [1/3] =

2

Sigma notation

inf

∑ (2/3)ⁿ

n = 1

CPhill Mar 1, 2018

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