Question

If the nth partial sum of a sequence an is given by


then what does a(sub)n equal?
(Points : 2)
8 + 14 + 20 + 26 + ... + 6n + 2

6n + 2

8 + 10 + 12 + 6n + 2

6n

Answer 1

\[\sum_{k=1}^{n}6k+2\]

Answer 2

well,so the u want to find that sum?

Answer 3

No, \[a _{n}\]

Answer 4

I think it's A