Lett: (2, 4) (1, 3) where f(x) = x - [x/2] (where [.] denotes the greatest integer function), then
f'(x) is
(A) not defined
(B) x-1
(C) x + 1
(D) none of these

Lett: (2, 4) (1, 3) where f(x) = x - [x/2] (where [.] denotes the greatest integer function), then
f'(x) is
(A) not defined
(B) x-1
(C) x + 1
(D) none of these