In a G.P if the first term is 3, nth term is 96 and the sum of n terms is 189, then the number of terms is

In an A.P.,the first term is 22, nth term is -11 and the sum to first n terms is 66. Find n and d, the common difference.

If the first term of G.P. is 7, its n^(th) term is 448 and sum of first n terms is 889, then find the fifth term of G.P.

A G.P. has first term 729 and 7th term 64. Find the sum of its first 7 terms.

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

If the sum of first 6 terms of A.P.is 96 and sum of first 10 terms is 240 ,then find the sum of n terms of A.P.

if nth term of an AP is 3n+2 then find the sum n terms.

In a sequence, if S_n is the sum of n terms and S_(n-1) is the sum of (n-1) terms, then the nth term is _________.

. The sum of the first three terms of an increesing 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 its first n terms is

If S is the sum to infinite terms of a G.P.whose first term is 1. Then the sum of n terms is