[" 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 powers of x in the expansion of (1+x+x^2)^15 is

Sum of coefficient of even powers of x in the expansion of (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.128c.512d.64

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

The sum of the co-efficients of all the even powers of x in the expansion of (2x^(2)-3x+1)^(11) is -