[" 1) "(1)/(7)," 2) "bar(12)],[" 15.Sum of the coefficients of "(1-x)^(25)" is "],[[" 1) "-1," 2) "1]]

Sum of the coefficients of (1+2x-4x^2)^(2003)

Sum of the coefficients of (1+2x-4x^2)^(2003)

The sum of the coefficient of (1+2x-4x^2)^35 is

Sum of the coefficients of (1+ x/3 + (2y)/(3))^12

Sum of the coefficients of (1+ x/3 + (2y)/(3))^12

The coefficient of x^(7) in (1-x)/((1+x)^(2)) is

The sum of the coefficients in the expansion of (1+2x-x^2)^(20) is

The sum of the coefficients of x^(32) and x^(-17) in (x^4- 1/(x^3))^15 is

The sum of the coefficients in the expansion of (1-2x+2x^2)^(2014) is

If the sum of the coefficients in the expansion of (1-4x+7x^(2))^(n) is "a" and the sum of the coefficients of (1+x+2x^(2))^(n) is "b" ,then find relation between a and b