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AP® Calculus AB-BC

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Constant Multiple Of Series

APCALC-XOVKWH

Find the value of the following:

$$\sum _{ n=1 }^{ \infty }{ \cfrac { 4 }{ { 5 }^{ n } } } $$

A

$0$

B

$\cfrac{4}{5}$

C

$\cfrac{5}{4}$

D

$1$