# Can you give me the easiest way to understand geometric series?? coz im gonna report it tomorrow.. in the class...thanks

1
by zyz

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by zyz

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You can call it the counterpart of the Arithmetic Series.

The formula for it is Sn = t1 (1 - r^n) / 1 - r [ S (sub n) = t (sub 1) times 1 - r^2 over 1 - r

where

Sn = the sum

r = common ratio

t1 = first term

n = number of terms.