Finx the sum of coefficients of all the terms of the exapansin `(ax+y)^(n)`.

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

What is the sum of the coefficients of all the terms in the expansion of (45x-49)^(4) ?

Consider the expansion of (1 + x)^(2n+1) The sum of the coefficients of all the terms in the expansion is

Show that the sum of the coefficients of the odd terms in the expansion of (1+x)^(2n)" is "2^(2n-1)

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

If the number of terms in the expansion of (1-(2)/(x)+(4)/(x^(2)))^(n),x!=0, is 28, then the sum of the coefficients of all the terms in this expansion,is : (1)64 (2) 2187 (3) 243 (4) 729