What is the sum of this infinite geometric series? 2+ 2/5+2/25+2/125+..... ...?

asked Jan 10, 2017 229k views

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We can determine is a ratio = (2/5)/2=1/5. Also we can use a formula for this:

∑
(1)/(5^k) = (1)/(1- (1)/(5) )

And in that way you wil find that it is the 4 term

JasonStoltz answered Jan 16, 2017

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