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Evaluate the infinite geometric series: 1 + 2/7 + 4/49 + 8/343 + ...

 May 1, 2021

Best Answer 

 #1
avatar+795 
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Evaluate the infinite geometric series: 1 + 2/7 + 4/49 + 8/343 + ...

 

Sum: (first term)/(1 - rate of increase)

First term = 1

Rate of increase = 2/7

1/(1-2/7)

1/(5/7)

7/5

 

laugh

 #1
avatar+795 
+4
Best Answer

Evaluate the infinite geometric series: 1 + 2/7 + 4/49 + 8/343 + ...

 

Sum: (first term)/(1 - rate of increase)

First term = 1

Rate of increase = 2/7

1/(1-2/7)

1/(5/7)

7/5

 

laugh


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