" 39.The sum of the infinite series "(5)/(13)+(55)/(13^(2))+(555)/(13^(3))+cdots" is "

The sum of the infinite series (5)/(17)+(55)/((17)^(2))+(555)/((17)^(3))+….. is

Find the sum of the series (5)/(13)+(55)/(13)^2+(555)/(13)^2+(5555)/((13)^4) …………..up to prop .

Find the sum of the infinite series 1+(1)/(3)+(1.3)/(3.6)+(1.3.5)/(3.6.9)+….

Find the sum of the infinite series (1.3)/(2)+(3.5)/(2^(2))+(5.7)/(2^(3))+(7.9)/(2^(4))+......oo

Find the sum of the infinite series 1+(1)/(3)+(1.3)/(3.6)+(1.3.5)/(3.6.9)+…..

The sum of the infinite series (5)/(3^(2)xx7^(2))+(9)/(7^(2)xx11^(2))+(13)/(11^(2)xx15^(2))+... is

Find the sum of the infinite series (7)/(5)(1+(1)/(10^(2))+(1.3)/(1.2).(1)/(10^(4))+(1.3.5)/(1.2.3).(1)/(10^(6))+....)

Find the sum of the infinite series (7)/(5)(1+(1)/(10^(2))+(1.3)/(1.2).(1)/(10^(4))+(1.3.5)/(1.2.3).(1)/(10^(6))+....)