1 - $ \frac12$ +$ \frac {1}{2^2} $+ $\frac {1}{2^3} $+....... =

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1 - $\frac12$ + $\frac {1}{2^2}$ + $\frac {1}{2^3}$ +....... =

A$\frac{2}{3}$

B2

C$\frac{1}{3}$

D-2

Answer:

$\frac{2}{3}$

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