Home
Class 11
MATHS
If f(n) = sum(r=1)^n [r^2(nCr-nC(r-1))+(...

If `f(n) = sum_(r=1)^n [r^2(nC_r-nC_(r-1))+(2r+1)nC_r],` then `f(50)` is

Promotional Banner

Similar Questions

Explore conceptually related problems

If f(n)=sum_(r=2)^(n)[r^(2)(nC_(r)-nC_(r-2)+4(r+1)n_(r)] ,then the largest prime divisor of f(2018) is

Find the sum sum_(r=1)^n r^n (^nC_r)/(^nC_(r-1)) .

Find the sum sum_(r=1)^n r^n (^nC_r)/(^nC_(r-1)) .

If f (n) = sum_(s=1)^n sum_(r=s)^n "^nC_r "^rC_s , then f(3) =

sum_(r=1)^(10) r. (""^nC_r)/(""^nC_(r-1)) =

Find the sum of sum_(r=1)^n r* (nC_r)/(nC_(r-1)

If nC_r + nC_(r+1) = (n+1)C_x then x=?

If S_(n)=sum_(r=0)^(n)(1)/(nC_(r)) and sum_(r=0)^(n)(r)/(nC_(r)), then (t_(n))/(S_(n))=

sum_(r=1)^(n) (-1)^(r-1) ""^nC_r(a - r) =

sum_(r=1)^(n) (-1)^(r-1) ""^nC_r(a - r) =