anonymous
  • anonymous
Find the sum of the following infinite geometric series, if it exists. 2 + 1.5 + 1.125 + 0.8437 +…
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Find the sum of the infinite series 3 + 1.2 + 0.48 + 0.192 + …if it exists.
anonymous
  • anonymous
use the a/1-r equation again.. your a=3 and your r = 2.5. Because to get from 3 to 1.2 you divide 3 by 2.5 or (5/2). I believe you should get 2.
anonymous
  • anonymous
r =.75 so sum of serease= a/(1-r) 2/(1-.75)=8 sum of series =8

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anonymous
  • anonymous
oh geez ignore my comment. wrong one
anonymous
  • anonymous
sam to what question have answered
anonymous
  • anonymous
sam's is to the 1st question. mine is to the second one.
anonymous
  • anonymous
okay...same one r=.4 a=3 so sum of series=3/(1-.4)=5

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