Q: If f(x) = x^4/(x^5 - 1), what is f(1/x) in terms of f(x)?\nOptions:\n(A) f(x) \n(B) 2*f(x) \n(C) 1/f(x) \n(D) -f(x) \n(E) 2/f(x)  Let's give some random thoughts before answering.
User
If x = 2 then f(x) = 16/31 and f(1/x) = -16/31 which is equal to -f(x)
Therefore, the answer is (D).
Assistant