solve

Suppose a function f is defined by the geometric series f(x) = x2k. k = 0 a. Evaluate f(0), f(0.4), f(0.5), f(1), and f(3.5), if possible. b. What is the domain of f? . . . a. Evaluate f(0). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. f(0) = (Type an exact answer.) O B. f(0) is undefined