sum_(0<=i<=j<=n)sum^(n)C_(i)" is equal to "

sum_ (i = 0)^(oo) sum_ (j = 0)^(oo) sum_ (k = 0)^(oo) (1)/(3^(i) 3^(i) 3^(k) )

sum_(i=0)^(n)sum_(j=0)^(n)sum_(k=0)^(n)((n),(i))((n),(j))((n),(k)),((n),(r))=""^(n)C_(r) :

Find the value of sum_(i=0)^(oo)sum_(j=0)^(oo)sum_(k=0)^(oo)(1)/(3^(i)3^(j)3^(k)) .

Find the value of underset((inejnek))(sum_(i=0)^(oo)sum_(j=0)^(oo)sum_(k=0)^(oo))1/(3^(i)3^(j)3^(k)) .

Evaluate, sum_(i = 0)^iinfty sum_(j = 0)^infty sum_(k = 0)^infty 1/(3^i cdot 3^j cdot 3^k) ( i ne j ne k)

Find the value of underset((inejnek))(sum_(i=0)^(oo)sum_(j=0)^(oo)sum_(k=0)^(oo))1/(3^(i)3^(j)3^(k)) .

Find the value of sum_(i=0)^(oo)sum_(j=0)^(oo)sum_(k=0)^(oo)(1)/(3^(i)3^(j)3^(k)) .

sum_(i=0)^(n)sum_(j=0)^(m)*^(n)C_(i)*C_(j) is equal to

The valur of sum_(r=0)^(n) sum_(p=0)^(r) ""^(n)C_(r) . ""^(r)C_(p) is equal to

The value of sum_(r=0)^(n) sum_(p=0)^(r) ""^(n)C_(r) . ""^(r)C_(p) is equal to