Find a G.P. for which sum of the first two terms is `-" "4` and the fifth term is 4 times the third term.

Find a G.P.for which sum of the first two terms is and the fifth term is 4 xx the third term.

In a GP, the sum of first two terms is -4 and the 5th term is 4 times the 3rd term. Find the GP.

Find the G.P. if the sum of its first two terms is 5 and each term is equal to 3 times the sum of its succeeding terms.

In a G.P.the product of the first four terms is 4 and the second term is the reciprocal of the fourth term.The sum of infinite terms of the G.P is

Find the sum of the first ten terms of the A.P. whose 4th term is -15 and 9th term is -30

The product of three consecutive terms of a GP Is -64 and the first term is four times the third. Find the terms.

In an A.P. the third term is four times the first term, and the sixth term is 17 , find the series.

Find n and x in the expansion of (1+x)^(n), if the fifth term is four xx the fourth term and the fourth term is 6xx the third term.