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 3 + 5x + 7x^(2) + …oo = (44)/(9) then x=

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

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 (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 3+(3+d)1/4+(3+2d)1/(4^2)+......oo is (44)/9 , then find d ddot