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

The sum of coefficients of integral powers of x in the binomial expansion of (1-2sqrt(x))^(50) is: (1) 1/2(3^(50)+1) (2) 1/2(3^(50)) (3) 1/2(3^(50)-1) (4) 1/2(2^(50)+1)

The sum of the co-efficients of all odd degree terms in the expansion of (x+sqrt(x^3-1))^5+(x-(sqrt(x^3-1))^5 , (x gt 1)

Sum of the coefficients of terms of degree 13 in the expansion of (1+x)^(11) (1+y^(2)-z)^(10) is

Find the coefficient of x^7 in the expansion of (1+3x-2x^3)^(10)dot

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

If the sum of the coefficients of the first, second, and third terms of the expansion of (x^2+1/x)^m i s46 , then find the coefficient of the term that does not contain xdot

Show that the coefficient of the middle term in the expansion of (1+x)^2n is equal to the sum of the coefficients of two middle terms in the expansion of (1 + x)^2n-1

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

Find the greatest coefficient in the expansion of (1+2x//3)^(15)dot .