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Calculate the sum of the geometric series 1 - 1/5 + 1/5^2 - 1/5^3 + .... Express your answer as a common fraction.

 Jan 19, 2021
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ratio, r , = -1/5      a= 1

 

sum =   a1 / (1-r)

       = 1 / ( 1 - -1/5) = ............

 Jan 19, 2021

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