Find the sum sum(i=0)^r^(n1)C(r-i)^(n2)C...

Find the sum `sum_(i=0)^r^(n_1)C_(r-i)^(n_2)C_i` .

A

`""^(n_(1)+n_(2))C_(r+1)`

B

`""^(n_(1)+n_(2))C_(r-1)`

C

`""^(n_(1)+n_(2))C_(r)`

D

`""^(n_(1)+n_(2)+1)C_(r)`

Verified by Experts

The correct Answer is:

C

Similar Questions

Explore conceptually related problems

Find the sum sum_(0<=i

Find the sum sum sum_(i!=j)^(n)C_(i)^(n)C_(j)

Find the sum sum_(0<=i

Find the sum sum sum_(0<=i<=j<=n)^(n)C_(i)^(n)C_(j)

Find the sum sum_(r=1)^(n)r^(2)(^nC_(r))/(n_(C_(r-1)))

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

Find the sum sum sum_(0<=i

Find the value of sum_(0<=i

Find sum of sum_(r=1)^(n)r.C(2n,r)