If f(x) = x^2/(x^5 - 1), what is f(1/x) in terms of f(x)?
Options:
(A) 1/f(x) 
(B) -f(x) 
(C) 2/f(x) 
(D) f(x) 
(E) 3*f(x)  Now, let's think a bit. Some random thoughts:
If x = 2 then f(x) = 4/31 and f(1/x) = -4/31 which is equal to -f(x)
The final answer: (B).