The nth term of the sequence is given by 2n² + 1. Write down the next four terms of the sequence. 1.3, 9, 19, 33
2.4, 10, 20, 34
3.5, 11, 21, 35
4.6, 12, 22, 36
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1. 3, 9, 19, 33

Step-by-step explanation:

2(4)²+1 = 2(16)+1 = 32+1 = 33

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step-by-step explanation:

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.