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poizon [28]
3 years ago
7

Find the first three terms of the sequence below. T, = n2 + 2n +9

Mathematics
2 answers:
NikAS [45]3 years ago
7 0

Answer:

12, 17, 24

Step-by-step explanation:

To find the first 3 terms, substitute n = 1, 2, 3 into the rule, that is

T₁ = 1² + 2(1) + 9 = 1 + 2 + 9 = 12

T₂ = 2² + 2(2) + 9 = 4 + 4 + 9 = 17

T₃ = 3² + 2(3) + 9 = 9 + 6 + 9 = 24

miskamm [114]3 years ago
3 0

Answer:

12, 17, 21 is the answer to the question

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