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OpenStudy (anonymous):
Find the sum of the following infinite geometric series, if it exist. 1/2+(-1/4)+1/8+(-1/16)+...
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OpenStudy (sloppycanada):
By chance do you do Keystone Online? I've seen this exact questions on their site.. First step for this - How does one go about finding the ratio for this?
OpenStudy (anonymous):
the ratio is -1/2
OpenStudy (sloppycanada):
Since it is in between 1 and -1, will it converge or not? This is very important.
OpenStudy (anonymous):
I don't think so???
OpenStudy (sloppycanada):
No, since it does converge, we have a solution
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OpenStudy (sloppycanada):
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