Respuesta :
Answer:
The sum of GP series is 88573
Step-by-step explanation:
Given the geometric sequence
1, 3, 9,... 11 terms
we have to find the sum of 11 terms.
a=1, r=3, n=11
The formula for finite terms of GP is
[tex]S_n=\frac{a(1-r^n)}{1-r}[/tex]
[tex]=\frac{1(1-3^{11})}{1-3}=\frac{177146}{2}=88573[/tex]
The sum of GP series is 88573
