What is the (n)th term of the sequence (5,17,37,65,101,\ldots)?
Answer and explanation
Correct answer: (4n^2+1)
The second differences are (8), and (4n^2+1) gives all starting terms. Half of the second difference is the coefficient of (n^2).
Frequently asked questions
What is the correct answer to this question?
(4n^2+1)
Why is this the correct answer?
The second differences are (8), and (4n^2+1) gives all starting terms. Half of the second difference is the coefficient of (n^2).
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: nth term.
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