SOLUTION: The first three terms of a geometric progression are 4,2 and 1 the common ratio is 2.
I need to calculate the sum to infinity of its terms?
Can someone explain step by step how
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Question 1027238: The first three terms of a geometric progression are 4,2 and 1 the common ratio is 2.
I need to calculate the sum to infinity of its terms?
Can someone explain step by step how to get the answer please, I would greatly appreciate it.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Recall the formula for an infinite geometric series:
if 
Here, a = 4 and r = 1/2 (not 2!). Plug that in and you will get 8 as the sum.
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