The sum of the coefficients of odd powers of x in the expansion `(1+x+x^2+x^3)^5`

The sum of the coefficient of odd powers of x in the expansion of (1+x+x^2)^15 is

The sum of coefficients of odd powers of x in the expansion of (1+x-x^2-x^3)^6 is

The sum of the coefficients of even powers of x in the expansion (1-x+x^(2)-x^(3))^(5) is

The sum of the coefficients of even power of x in the expansion of (1+x+x^2+x^3)^5 is 256 b. 128 c. 512 d. 64

The sum of the coefficients of even power of x in the expansion of (1+x+x^2+x^3)^5 is a. 256 b. 128 c. 512 d. 64

Let the coefficients of powers of in the 2^(nd), 3^(rd) and 4^(th) terms in the expansion of (1+x)^(n) , where n is a positive integer, be in arithmetic progression. The sum of the coefficients of odd powers of x in the expansion is

Let the coefficients of powers of x in the 2^(nd), 3^(rd) and 4^(th) terms in the expansion of (1+x)^n , where n is a positive integer, be in arithmetic progression. Then the sum of the coefficients of odd powers of x in the expansion is

Let the coefficients of powers of x in the 2^(nd), 3^(rd) and 4^(th) terms in the expansion of (1 + x)^(n) , where n is a positive integer, be in arithmetic progression. Then the sum of the coefficients of odd powers of x in the expansion is