Write down the 3rd term in the sequence given by: T(n) = 2n² + n

asked Apr 1, 2022 43.5k views

2 votes

by Doldt

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Answer:

T(3) = 21

Explanation:

To find the third term, substitute n = 3 into T(n) , that is

T(3) = 2(3)² + 3 = 2(9) + 3 = 18 + 3 = 21

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