Math Chapter Wise Limit, Continuity And Differentiability Of Function Of One Variable English MCQ UKPSC Lecturer (Mains) 2020 Q.If f(x) is a differentiable function, then x αf(x) f(α) lim x α → − x is: Aαf '(α) f(α) Bαf '(α) f(α)/+ Cαf(α) f '(α) Dαf(α) f '(α) Show answer Correct answer: αf '(α) f(α)