 
<translate> Idan x = 2 to f (x) = 4/31 da kuma f (x) = -4/31 wanda yake daidai da -f (x) Amsar ƙarshe: (B). <eng> If x = 2 then f(x) = 4/31 and f(1/x) = -4/31 which is equal to -f(x)
The final answer: (B). 