If FT{x(n)} = X(w), then FT{x(2n)} = ______.

If FT{x(n)} = X(w), then FT{x(2n)} = ______.

If FT{x(n)} = X(w), then FT{x(2n)} = ______.



a. 1/2 *[X(w/2) + X((w-2pi)/2)]
b. 1/2 *[X(w/2) - X((w-2pi)/2)]
c. [X(w/2) + X((w-2pi)/2)]
d. X(w)


Answer: a


Learn More :