camballard8081 camballard8081
  • 23-05-2018
  • Mathematics
contestada

What is the sum of the infinite geometric series with a1=42 and r=6/5?

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altavistard
altavistard altavistard
  • 24-05-2018
This infinite sum is given by

          a     
S =  ------  but ONLY if r<1.  Here, r>1, so the infinite sum does not exist.    
        1-r                                     
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