Find the sum of the infinite series, if it exists. 100+20+4+… And please show work

asked Jan 1, 2021 136k views

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Answer:

Explanation:

r=20/100=0.2<|1|

$S_(\infty) =(a_(1))/(1-r) \\=(100)/(1-0.2) =(100)/(0.8) =125$

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