Question

determine the formula for the nth term of the following sequence: 2,3,6,11,18

Answer 1

what you are doing here, really quickly:
\(\large\color{slate}{ 2\color{red}{+1}=3 }\)
\(\large\color{slate}{3\color{red}{+3}=6 }\)
\(\large\color{slate}{6\color{red}{+5}=11 }\)
\(\large\color{slate}{11\color{red}{+7}=18 }\) and on...

Answer 2

so is that the answer? @SolomonZelman

Answer 3

no,

Answer 4

it wouldnt be broken down like this ? @SolomonZelman

Answer 5

you need the formula for the nth term though,
\(\large\color{slate}{2\color{red}{+1+(0\times 2)}=3 }\)
\(\large\color{slate}{3\color{red}{+1+(1\times 2)}=6 }\)
\(\large\color{slate}{6\color{red}{+1+(2\times 2)}=11 }\)

Answer 6

see what I am trying to say?