. The sum of the first three terms of an increasing `G.P.` is `21 `and the sum of their squares is` 189`. Then the sum of its first n terms is

The sum of the first three terms of an increasing G.P.is 21 and the sum of their squares is 189. Then the sum of the first n terms is

. The sum of the first three terms of an increasing G.P. is 21 and the sum of the their squaresis 189. Then sum of its first n terms is

The sum of the first three terms of a strictly increasing G.P. is alphas and sum of their squares is s^2

The sum of the first three terms of a strictly increasing G.P.is alpha s and sum of their squares is s^(2)

The sum of the first three terms of an arithmetic progression is 9 and the sum of their squares is 35. The sum of the first n terms of the series can be

The sum of the first three terms of an arithmetic progression is 9 and the sum of their squares is 35. The sum of the first n terms of the series can be

The sum of the first three terms of G.P. is 7 and the sum of their squares is 21. Determine the first five terms of the G:P.

The sum of the first three terms of a G.P. is 21 and the sum of the next three terms is 168. Find the sum of first five terms.

The sum of the first three consecutive terms of G.P. is 13 and the sum of their Squares is 91. Determine the G.P.

The sum of the first thre consecutive terms of G.P is 13 and the sum of their squares is 91. Determine the G.P.