" 25.Evaluate "lim_(n rarr oo)(1(sum_(r=1)^(n)r)+2(sum_(r=1)^(n-1)r)+3(sum_(r=1)^(n-2)r)+...+n.1)/(n^(4))

The value of lim_(n rarr oo)(1*sum_(r=1)^(n)(r)+2*sum_(r=1)^(n-1)(r)+3sum_(r=1)^(n-2)(r)+....+n.1)/(n^(4))

Evaluate: lim_(n rarr oo)(sum_(r=1)^(n)sqrt(r)sum_(r=1)^(n)(1)/(sqrt(tau)))/(sum_(r=1)^(n)r)

lim_(n rarr oo)(1)/(n^(4))sum_(r=1)^(n)r^(3)=

"lim_(n rarr oo)(1)/(n){sum_(r=1)^(n)e^((r)/(n))}=

Evaluate :lim_(n rarr oo)sum_(r=1)^(n)(1)/((n^(2)+r^(2))^(1/2))

Evaluate: lim_(n rarr oo) (sum_(r=0)^( n) (1)/(2^(r))) .

lim_(x rarr2)(sum_(r=1)^(n)x^(r)-sum_(r=1)^(n)2^(r))/(x-2)

lim_(n rarr oo) sum_(r=0)^(n-1) 1/(n+r) =