[" 19.Value of "sum_(m=1)^(n-1)(sum_(k=1)^(n)c_(r-1))" where "n," r,"k in" Nequals "],[[" (A) "2^(n+1)-1," (B) "2^(n+1)-2]]

The value of sum_(r=1)^(n+1)(sum_(k=1)^(n)C(k,r-1))=

The value of sum_(r=1)^(n+1)(sum_(k=1)^n ^kC_(r-1)) (where r, k, n in N ) is equal to

The value of sum_(r=1)^(n+1)(sum_(k=1)^n "^k C_(r-1)) ( where r ,k ,n in N) is equal to a. 2^(n+1)-2 b. 2^(n+1)-1 c. 2^(n+1) d. none of these

The value of sum_(r=1)^(n+1)(sum_(k=1)^n "^k C_(r-1)) ( where r ,k ,n in N) is equal to a. 2^(n+1)-2 b. 2^(n+1)-1 c. 2^(n+1) d. none of these

The value of sum_(r=1)^(10)r(n C_(r))/(n C_(r-1)) =

The value of sum_(r=1)^(n+1)(sum_(k=1)^(k)C_(r-1))( where r,k,n in N) is equal to a.2^(n+1)-2b2^(n+1)-1c.2^(n+1)d. none of these

Find the value of sum_(i=1)^n sum_(i=1)^n sum_(k=1)^n k

Find the value of sum_(i=1)^n sum_(i=1)^n sum_(k=1)^n 1

The value of sum_(r=0)^(n)sum_(s=1)^(n)*^(n)C_(5)*^(s)C_(r) is

sum_(r=1)^(n)r^(2)-sum_(m=1)^(n)sum_(r=1)^(m)r is equal to