Home
Class 12
MATHS
sum(r=0)^n((n-3r+1)^n Cr)/((n-r+1)2^r) i...

`sum_(r=0)^n((n-3r+1)^n C_r)/((n-r+1)2^r)` is equal to

Promotional Banner

Similar Questions

Explore conceptually related problems

Value of sum_(r=0)^(2n)r*(""^(2n)C_(r))*(1)/((r+2)) is equal to :

If a+b=1, then sum_(n=0)^(n)C(n,r)a^(r)b^(n-r) is equal to '

The value of sum_(r=0)^(n-1)^n C_r//(^n C_r+^n C_(r+1)) equals a. n+1 b. n//2 c. n+2 d. none of these

sum_(r=1)^(n)(sum_(p=0)^(r-1)""^(n)C_(r)""^(r)C_(p)2^(p)) is equal to:

sum_(r=0)^(n)((r+2)/(r+1))*""^(n)C_(r) is equal to :

sum_(r=0)^(n)((r+2)/(r+1))*""^(n)C_(r) is equal to :

sum_(r=0)^(n)((r+2)/(r+1))*""^(n)C_(r) is equal to :

sum_(r=1)^(n)(C(n,r))/(r+2) is equal to

sum_(r=0)^(n)(""^(n)C_(r))/(r+2) is equal to :