Answer
The $n^{th}$ term of the sequence is given by the formula:
$a_n =0 \ (\dfrac{1}{\pi})^{n-1}=0$
and $a_5=0$
Work Step by Step
The general formula for nth term $a_n$ of a geometric sequence is: $a_n=a_1 r^{n-1}$
We are given: $a_{1}=0 ; \ r=\dfrac{1}{\pi}$
Therefore, the $n^{th}$ term of the sequence is given by the formula:
$a_n =0 \ (\dfrac{1}{\pi})^{n-1}=0$
Now, the 5th term can be computed by substituting $5$ for $n$:
$a_5=0 \ (\dfrac{1}{2})^{n-1}=0$
