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Home  >>  CBSE XI  >>  Math  >>  Sequences and Series
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Find the first 5 terms of the series whose $n^{th} $ term is $a_n=n(n+2)$

$\begin{array}{1 1}3,8,15,24,35 \\ 3,9,15,24,35 \\3,8,15,25,35 \\ 3,8,12,24,35 \end{array} $

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  • If $n^{th}$ term is known, put $n=1,2,3......$ to get the series.
Given: $t_n=n(n+2)$
$\therefore \:$ The first 5 terms of the series are
answered Feb 15, 2014 by rvidyagovindarajan_1

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