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1999

JEE Main 1999 Mathematics question on Limits Continuity and Differentiability

The function f(x)=[x]2−[x2]f(x) = [x]^2 - [x^2] (where, [x][x] is the greatest integer less than or equal to xx), is discontinuous at
  1. A.
    all integers
  2. B.
    all integers except 0 and 1
  3. C.
    all integers except 0
  4. D.
    all integers except 1
Show answer

Correct option: B

[1999]

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