The sum of the coefficients of powers of x int eh expansion of the polynomial `(x-3x^2+x^3)^99` is (A) 0 (B) 1 (C) 2 (D) -1

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

The sum of the coefficients in the expansion of (1+x-3x^2)^(171) is

If n is not a multiple of 3, then the coefficient of x^n in the expansion of log_e (1+x+x^2) is : (A) 1/n (B) 2/n (C) -1/n (D) -2/n

The coefficient of x^6 in the expansion of (1+x+x^2)^(-3), is

Find the sum of the coefficients of all the integral powers of x in the expansion of (1+2sqrt(x))^(40)dot

Find the sum of the coefficients in the expansion of (1+2x+3x^2+ n x^n)^2dot

The sum of the coefficients in the expansion of (1 - x + x^(2) - x^(3))^(n) ,is

Find the sum of the coefficients of x^(32) and x^(-18) in the expansion of (2x^(3)-(3)/(x^(2)))^(14) .