defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Relations and Functions Operations on Functions
Function f : [1.2, 1.9] → R, f(x) = [x], where [x] denotes the greatest int less than or equal to x. Then _______.
1
f'(x) = 1
2
f is not differentiative
3
f'(x) = 0
4
f is not continuous function