The set of points where the function [unclear] 1 ≤ x ≤ 3 where denotes greatest integral function, is not differentiable in
A
[-1, 0, 1, 2, 3]
B
[-1, 0, 2]
C
[0, 1, 2, 3]
D
[-1, 0, 1, 2]
Correct Option:
A
Explanation
The expression in the source is incomplete, but the relevant greatest integer function [x] is non-differentiable at integral jump points. On the stated interval, the listed non-differentiability points are −1, 0, 1, 2, and 3.
