JEE Main 2019 Mathematics question
Let be defined as
f(x) =
where [t] denotes the greatest integer less than or equal to t. Then, f is discontinuous at:
Answer: (B)
Solution
Jumps at x = 0 (−1 → 0), x = 1 (1 → 2) and x = 3 (5 → 6); continuous at x = 2.