JEE Main 2002 — Continuity and Differentiability Question with Solution
JEE Main 2002
Question
f is defined in [-5, 5] as f(x) = x if x is rational and = -x is irrational. Then
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Show full solutionCorrect option: B
Correct answer
Bf(x) is discontinuous at every x, except x = 0
Step-by-step explanation
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This is a previous-year question from JEE Main 2002, covering the Continuity and Differentiability chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.