Evaluate the series please

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Evaluate the series 8 + 4 + 2 + . . .

May 16th, 2015

This is a geometric series with a common ratio of (0.5). 

S = a(1) / (1-r)  =  8 / (1 - 0.5)  = 8 / 0.5  = 16.


Hope this helps.

May 16th, 2015

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May 16th, 2015
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May 16th, 2015
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