Which term of the following sequences:
(a) `2,2sqrt2,4..........` is 128 ? (b) `sqrt3,3,3sqrt3 ,.............` is 729 ?
(c) `1/3,1/9,1/(27),......." is " 1/19683` ?

Answer

(a) `13^(th)` , (b) `12^(th)` , (c) `9^(th)`