The sum of first three terms of a G.P is 13/12 and their products is -1. Find the common ratio and the terms.

The sum of first three terms of a G.P. is 13/12 and their product is – 1. Find the common ratio and the terms.

The sum of first three terms of a G.P. is 39/10 and their product is 1. Find the common ratio and the terms.

Let the sum of first three terms of G.P. with real terms be 13/12 and their product is -1 . If the absolute value of the sum of their infinite terms is S , then the value of 7S is ______.

The sum of first 6 terms of a G.P. is 9 times the sum of its first 3 terms. Find the common ratio of the G.P.

The sum of first 8 terms of a G.P. is five times the sum of the first 4 terms. Find the common ratio.

The sum of first 15 terms of an A.P. is 750 and its first term is 15. Find its 20th term.

The first terms of a G.P. is 1. The sum of the third and fifth terms is 90. Find the common ratio of the G.P.

The sum of first three terms of a G.P. is 16 and the sum of the next three terms is 128. Determine the first term, the common ratio and the sum to n terms of the G.P.

The sum of first ten terms of an A.P. is 155 and the sum of first two terms of a G.P. is 9. The first term of the A.P. is equal to the common ratio of the G.P. and the first term of the G.P. is equal to the common difference of the A.P. Find the two progressions.

The first term of a G.P. is 1. The sum of the third term and fifth term is 90. Find the common ratio of G.P.