" 15."cot^(-1)(2*1^(2))+cot^(-1)(2*2^(2))+cot^(-1)(2*3^(2))+.......oo

cot^(-1)(2*1^(2))+cot^(-1)(2*2^(2))+cot^(-1)(2*3^(2))+... "upto "infty is equal to

cot^(-1)(2.1^(2))+cot^(1)(2.2^(2))+cot^(-1)(2.3)^(2)+………… up to oo =

The sum to infinite terms of the series cot^(- 1)(2^2+1/2)+cot^(- 1)(2^3+1/(2^2))+cot^(- 1)(2^4+1/(2^3))+... is

The sum of infinite terms of the series cot^(-1)(2^(2)+1/2)+cot^(-1)(2^(3)+1/2^(2))+cot^(-1)(2^(4)+1/2^(3))+…=cot^(-1)k then k =

The sum to infinite terms of the series cot^(-1)(2^(2)+(1)/(2))+cot^(-1)(2^(3)+(1)/(2^(2)))+cot^(-1)(2^(4)+(1)/(2^(3)))+

If the sum of first 16 terms of the series s=cot^(-1)(2^2+1/2)+cot^(-1)(2^3+1/(2^2))+cot^(-1)(2^4+1/(2^3))+ up to terms is cot^(-1)((1+2^n)/(2(2^(16)-1))) , then find the value of ndot

If the sum of first 16 terms of the series s=cot^(-1)(2^(2)+(1)/(2))+cot^(-1)(2^(3)+(1)/(2^(2)))+cot^(-1)(2^(4)+(1)/(2^(3)))+ up to terms is cot^(-1)((1+2^(n))/(2(2^(16)-1))), then find the value of n.

Find sum_(n=1)^(oo)cot^(-1)(2*n^(2))=