The sum of the series `sum_(i=1)^50 C(100,50-i) C(50,i)` equals

Find the sum of the series sum_(r=0)^(50)(""^(100-r)C_(25))/(100-r)

Find the sum of the series sum_(r=0)^(50)(""^(100-r)C_(25))/(100-r)

The value of sum_(r=0)^50 (.^(100)C_r.^(200)C_(150+r)) is equal to

The sum sum_(i=1)^(50)(r) is :-

The sum sum_(r=1)^(50) r.(2^(r)+2^(50-r)) equals

The value of sum_(i=0)^(r)C(n_(1),r-i)C(n_(2),i) is equal to

502. The sum sum_(r=1)^(50)r.(2^(r)+2^(50-r)) equals

sum_(i=1)^(n) sum_(i=1)^(n) i is equal to

sum_(i=1)^(n) sum_(i=1)^(n) i is equal to

The sum of 50 terms of the series 1+2(1+(1)/(50))+3(1+(1)/(50))^(2)+ is given by (A) 2500 (B) 2550 (C) 2450 (D) none of these