In the expansion of `(1+x)^(70)`, the sum of coefficients of odd powers of `x` is

In the expansion of (1+x)^(30) the sum of the coefficients of odd powers of x is

In the expansion of (1+x)^(50) , the sum of the coefficients of odd powers of x is :

In the expansion of (1+x)^(50) find the sum of coefficients of odd powers of x.

In the expansion of (1+x)^(50), find the sum of coefficients of odd powers of x.

In the expansion of (1+x)^(50), find the sum of coefficients of odd powers of x .

Observe the following statements : Statement -I : In the expansion of (1+x)^50, the sum of the coefficients of odd powers of x is 2^50 . Statement -II : The coefficient of x^4 in the expansion of (x/2 - (3)/(x^2))^10 is equal to 504/259 . Then the true statements are :