The product of first nine terms of a GP is, in general, equal to which one of the following ?

The sum of an infinite GP is x and the common ratio r is such that |r|lt1 . If the first term of the GP is 2, then which one of the following is correct ?

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

The product of first 3 terms of a GP is 1000. If 6 terms to the second term and 7 is added to the third term, the terms become an AP. Find the terms of the GP.

The sum oif the first ten terms of an A.P. is equal to 155, and the sum of the first two terms of a G.P. is 9. Find these progressionsif the first term of the A.P. equals the common ratio of the G.P. and the 1st term of G.P. equals the common difference of A.P.

The sum oif the first ten terms of an A.P. is equal to 155, and the sum of the first two terms of a G.P. is 9. Find these progressionsif the first term of the A.P. equals the common ratio of the G.P. and the 1st term of G.P. equals the common difference of A.P.

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

Prove that the product of first 'n' terms of a G.P., whose first term is ‘a’ and last term is ‘l’ , is (al)^(n/2) .

The sum of the first 10 terms of a certain G.P. is equal to 244 xx the sum of the first 5 terms.Then the common ratio is