Answer:
the nth term is [tex]An = 81(1/3)^{n-1}[/tex]
Step-by-step explanation:
81,27,9 is an example of geometric sequence. Thus ,
- common ratio = 21 / 81 or 1/3
Given also the First term or A1 = 81
[tex] \\ [/tex]
We plugged this to get the nth term
- [tex]An = A1r^{n-1}[/tex]
- [tex]An = 81(1/3)^{n-1}[/tex]
Therefore, the nth term is [tex]An = 81(1/3)^{n-1}[/tex]
