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State whether the given geometric series have sums.

 

6.  5 + 10 + 20 + 40 + …                                   

 

8.  6 + 2 + 2/3 + 2/9 + …            

                

10.  1 + .1 + .01 + .001 + …                              

 

12.  1 – 1/5 + 1/25 – 1/125 + …                   

 Apr 18, 2019
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6. The numbers are growing exponentially so there is no sum

8. The numbers are shrinking exponentially so there is a sum, which is 9.

Based on this, can  you find the other two?

 

You are very welcome!

:P

 Apr 18, 2019

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