" In the expansion of "(1+x)^(n)(1+y)^(n)(1+z)^(n)" ,the sum of the co-efficient of the terms of degree 'r" is "

In the expansion of (1 + x)^(n) (1 + y)^(n) (1 + z)^(n) , the sum of the co-efficients of the terms of degree 'r' is

In the expansion of (1 + x)^(n) (1 + y)^(n) (1 + z)^(n) , the sum of the co-efficients of the terms of degree 'r' is

In the expansion of (1 + x)^(n) (1 + y)^(n) (1 + z)^(n) , the sum of the co-efficients of the terms of degree 'r' is (a) .^(n^3)C_r (b) .^nC_(r^3) (c) .^(3n)C_r (d) 3.^(2n)C_r

Prove that in the expansion of (1+x)^n(1+y)^n(1+z)^n , the sum of the coefficients of the terms of degree ri s^(3n)C_r .

Prove that in the expansion of (1+x)^n(1+y)^n(1+z)^n , the sum of the coefficients of the terms of degree ri s^(3n)C_r .

In the expansion of (1+x)^(n), the sum of the coefficients of the terms in even positions is 2^(n-1)

Show that the coefficient of the middle term in the expansion of (1 + x)^(2n) is the sum of the coefficients of two middle terms in the expansion of (1 + x)^(2n-1) .

how that the coefficient of (r+1) th in the expansion of (1+x)^(n+1) is equal to the sum of the coefficients of the r th and (r+1) th term in the expansion of (1+x)^(n)

how that the coefficient of (r+1) th in the expansion of (1+x)^(n+1) is equal to the sum of the coefficients of the r th and (r+1) th term in the expansion of (1+x)^n

Prove that the coefficient of the middle term in the expansion of (1+x)^(2n) is equal to the sum of the coefficients of middle terms in the expansion of (1+x)^(2n-1)