The sum to infinity of the series 1+`(4)/(5)`+`(7)/(5^2)`+`(10)/(5^3)`+....is

The sum to infinity of the series 1+(4)/(7)+(9)/(49)+(16)/(343)+.... is

Find the sum to infinity of the series: 1+(3)/(2)+(5)/(2^(2))+(7)/(2^(3))+.........oo

Find the sum of n terms of the series 1+(4)/(5)+(7)/(5^(2))+(10)/(5^(3))+

The sum to infinity of the series (1)/(2.4)+(1)/(4.6)+(1)/(6.8)+(1)/(8.10)+...... is

If the sum to infinity of the series 1 + 4x + 7x^2 + 10x^3 +............. is 35/16 then x= (A) 1/5 (B) 2/5 (C) 3/7 (D)1/7

find the sum upto n terms of the series (1)/(1*3)+(1)/(3*5)+(1)/(5*7)+...

n^(th) terms of the series 1+(4)/(5)+(7)/(5^(2))+(10)/(5^(3))+......... will be