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For the S(n)=3n^(2)+5n sequence, the num...

For the `S_(n)=3n^(2)+5n` sequence, the number 5456 is the

A

153th term

B

932th term

C

707th term

D

909th term

Text Solution

Verified by Experts

The correct Answer is:
D
Given, `T_(n)=5456`
`implies 6n+2=5456 implies 6n-5454`
`:. N=909`
`:.` The number 5456 is the 909th term.
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