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How do you find $a_7$ if $a_n=12(1/2)^(n-1)$ ?

1 Answer

Jan 15, 2017

$a_7 = 3/16$

Explanation:

$a_n = 12(1/2)^(n - 1)$

$=> a_7 = 12(1/2)^(7 - 1)$

$=> a_7 = 12(1/64)$

$=> a_7 = 3/16$

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