Question

Find the first five terms and the term named in the problem. a 11/1+ 8/2 nFind a 23

Answer 1

To find the term a23 you have to replace 23 where it says 'n':

`a_n=(11)/(8)+(1)/(2)n`
`a_(23)=(11)/(8)+((1)/(2)*23)=(11)/(8)+(23)/(2)=(11+92)/(8)=(103)/(8)=12.875`

The answer is:

`a_(23)=(103)/(8)=12.875`