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Deangelo Rivera
Mathematics
20 April, 04:29
Give the first five terms of the sequence
an=2n2+2
+5
Answers (
1
)
Kenzie
20 April, 04:31
0
The answer to your question is 3, 9, 19, 33, 51
Step-by-step explanation:
Sequence an = 2n² + 1
1st term a₁ = 2 (1) ² + 1 = 2 (1) + 1 = 2 + 1 = 3
2nd term a₂ = 2 (2) ² + 1 = 2 (2) ² + 1 = 2 (4) + 1 = 8 + 1 = 9
3rd term a₃ = 2 (3) ² + 1 = 2 (3) ² + 1 = 2 (9) + 1 = 18 + 1 = 19
4rd term a₄ = 2 (4) ² + 1 = 2 (4) ² + 1 = 2 (16) + 1 = 32 + 1 = 33
5th term a₅ = 2 (5) ² + 1 = 2 (5) ² + 1 = 2 (25) + 1 = 50 + 1 = 51
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