Answer:
geometric sequences are given below
1,3,9,27,81
5,10,20,40,80,160
10,5,205,1.25,0.625,0.3125
Explanation:
geometric sequences are those sequences whose common ratio are same
so that
![(3)/(1)=(9)/(3)=(27)/(9)=(81)/(27)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/m2i5vb83n3fk5igefo5ozfc2m2jshjhlup.png)
1,3,9,27,81
5,10,20,40,80,160
10,5,2.5,1.25,0.625,0.3125
these are in geometric sequences