Given: geometric series 1 , 5, 25 , 125,.................
Find: formula for the geometric series
Explanation: the general formula for the series is
[tex]\begin{gathered} ar^{n-1} \\ 1.5^{n-1} \\ 5^{n-1} \end{gathered}[/tex]
Final answer:
[tex]a_n=5^{n-1}[/tex]
