Answer
No sum
Work Step by Step
Here, we have $a_n= a_1 r^{n-1}$ for the Geometric series.
In this problem we have Common ratio $r=3$
The sum of an infinite Geometric Series can be found using: $S_n=\dfrac{a_1}{1-r}$
Here, $r=3 \gt 1$
Thus, there is no sum, that is $S_n=0$.
