[" What is the sum of the coefficients of all the terms in "],[" the expansion of "(45x-49)^(4)?],[" (B) "-100]

The sum of the coefficients of middle terms in the expansion of (1+x)^(2n-1)

The sum of the coefficients of middle terms in the expansion of (1+x)^(2n-1)

The sum of the coefficients of the terms of the expansion of (3x-2y)^n is

The sum of the coefficients of the first 10 terms in the expansion of (1-x)^(-3) is

Show that the sum of the coefficients of all odd terms in the expansion of (1+x)^(2p) is 2^(2p-1) .

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)

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)

What is the sum of the coefficients in the expansion of (1+x)^(n) ?