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Write down the 3rd term in the sequence given by: T(n) = n2 + 4

please help me this question is really hard

Respuesta :

If n2 is n^2, then simply plug in 3 as n. After all, you are looking for the 3rd term. 3^2+4 would be 13. 
We want the 3rd term so we plug in 3 into the formula.

T(3) = 3^2 + 4
T(3) = 9 + 4
T(3) = 13

So, the 3rd term is 13.
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