`T_r=r/2^r` then find `S_oo` is;

If T_r=r(r^2-1), then find sum_(r=2)^oo1/T_rdot

If T_r=r(r^2-1), then find sum_(r=2)^oo1/Tdot

If T_r=r(r^2-1), then find sum_(r=2)^oo1/Tdot

If T_(r)=r(r^(2)-1), then find sum_(r=2)^(oo)(1)/(T)

The r th term of a series is given by t_r=r/(1+r^2+r^4) , then lim(n->oo)sum_(r=1)^n(t_r)

Let t_r=2^(r/2)+2^(-r/2) then sum_(r=1)^10 t_r^2=

Let t_r=2^(r/2)+2^(-r/2) then sum_(r=1)^10 t_r^2=

If the sum of the series sum_(n=0)^(oo)r^(n),|r|<1 is s then find the sum of the series sum_(n=0)^(oo)r^(2n)

The r^(th) term t_(r) of a series is given by t_(r)=(r)/(r^(4)+r^(2)+1) then lim_(n to oo) overset(n) underset(r=1) sum t_(r)=

If the sum of the series Sigma_(n=0)^(oo) r^(n),|r|le 1 is s, then find the sum of the series Sigma_(n=0)^(oo) r^(2n),|r|le 1