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Sequence

If Tn = n2 ...

Question

If $T_{n} = n^{2} + 3$ then the value of $T_{3}$ is

A

6

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B

9

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C

12

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D

27

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Solution

The correct option is C $12$
Given that:
$T_{n} = n^{2} + 3$
To find:
$T_{3} = ?$
Solution:
$T_{n} = n^{2} + 3$
$T_{3} = 3^{2} + 3$
$T_{3} = 9 + 3$
$T_{3} = 12$

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