SOLUTION: Write each series in summation notation -2 +4 -8 +16 -32

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Question 443823: Write each series in summation notation
-2 +4 -8 +16 -32
Answer by tinbar(133) About Me  (Show Source):
You can put this solution on YOUR website!
(Sigma):(-2)^n, from n = 1 up to infinity.
if your question requires you start from n = 0 and go to infinity, then the answer is: (Sigma):(-2)^(n+1)