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Question: Answered & Verified by Expert
The function $f(x)=[x]$, where $[x]$ denotes the greatest integer not greater than $x$, is
MathematicsContinuity and DifferentiabilityJEE Main
Options:
  • A continuous for all non-integral values of $x$
  • B continuous only at positive integral values of $\mathrm{x}$
  • C continuous for all real values of $x$
  • D continuous only at rational values of $x$
Solution:
2065 Upvotes Verified Answer
The correct answer is: continuous for all non-integral values of $x$
Given, $f(x)=[x]$ from the graph we observe that $f(x)=[x]$ discontinuous at every integral value of $x$. That means, $f(x)=[x]$. Continuous only for all non-integral values of $\mathrm{x}$.


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