" If sum to infinity of the series "3-5r+7r^(2)-9r^(3)+......" is "14/9," find "r

If the sum to the infinity of the series 3+5r+7r^(2)+... is (44)/(9) then find the value of r

If the sum to the infinity of the series 3+5r+7r^2+.... is 44/9 then find the value of r

If the sum to infinity of the series 3+5r+7r^2+………is 44/9 . Find r.

If the sum to infinity of the series 1 + 2r + 3r^(2) + 4r^(3)+ cdots is 9/4 then value of of r is

If the sum to infinity of the series 1+2r+3r^(2)+4r^(3)+ is 9/4, then value of r is (a)1/2 b.1/3 c.1/4 d.none of these

If the sum to infinity of the series 1+2r+3r^2+4r^3+ is 9/4, then value of r is 1//2 b. 1//3 c. 1//4 d. none of these

If the sum to infinity of the series 1+2r+3r^2+4r^3+ is 9/4, then value of r is (a) 1//2 b. 1//3 c. 1//4 d. none of these

If the sum to infinity of the series 1+2r+3r^2+4r^3+ is 9/4, then value of r is 1//2 b. 1//3 c. 1//4 d. none of these

If the sum to infinity of the series 1+2r+3r^2+4r^3+ is 9/4, then value of r is (a) 1//2 b. 1//3 c. 1//4 d. none of these

Find the sum to infinity of the series 1 + (1+a)r+(1 + a + a ^(2))r^(2) + … where 0 lt a, r le 1