Answer:
The geometric sequence is 27,9,3,1,1/3, 1/9,1/27 ....
Step-by-step explanation:
We have given the 5th term a5 = 1/3
Constant ratio r= 1/3
a5 = a 1 * r^4
1/3= a1 * (1/3)^4
1/3 = a1* 1/81
a1= 1/3 : 1/81
We can solve it as:
a1 = 1/3 * 81
a1= 27
Thus the geometric sequence is 27,9,3,1,1/3, 1/9,1/27 ....
