If `""^(18)C_(15)+2(""^(18)C_(16))+""^(17)C_(16)+1=""^(n)C_(3)`, then n is equal to :

If ^(^^)18C_(15)+2^(18)C_(16)+^(17)C_(16)+1=^(n)C_(3) then n=

Find ""^(18)C_(3)+^(18)C_(2)

Let n in N and [x] denote the greatest integer less than or equal to x. If the sum of (n + 1) terms ""^(n) C_(0) , 3 .""^(n)C_(1) , 5. :""^(n) C_(2) , & .""^(n)C_(3) is equal to 2 ^(100) . 101 then 2 [(n-1)/(2)] is equal to _________

sum_(n=1)^(oo) (""^(n)C_(0) + ""^(n)C_(1) + .......""^(n)C_(n))/(n!) is equal to

The sum of the series 1+(1)/(2) ""^(n) C_1 + (1)/(3) ""^(n) C_(2) + ….+ (1)/(n+1) ""^(n) C_(n) is equal to

If .^(n)C_(12) = .^(n)C_(16) , find the value of n