In a sequence if $T_{n} = n^{2} + 4$ then find $T_{2}$ .

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Solution

Given $T_{n} = n^{2} + 4$
for finding $T_{2}$ put $n = 2$ in $T_{n}$
we get $T_{2} = 2^{2} + 4$
$T_{2} = 8$

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