Find the explicit formula for the nth term of the 2/9,0,2/9,0,......

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asked Mar 18, 2018 7.7k views

1 vote

Find the explicit formula for the nth term of the 2/9,0,2/9,0,......

Mathematics
college

Mskolnick asked

by Mskolnick

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1 Answer

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The odd-numbered terms are
$\frac19+\frac19$ , while the even-numbered terms are
$\frac19-\frac19$ , so one formula for the sequence is

$a_n=\frac19\left(1+(-1)^(n+1)\right)$

where
$n\ge1$ .

Mox Shah answered Mar 22, 2018

by Mox Shah

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