Let f:[−1,3]→R be defined as
f(x)={\begin{matrix}|x|+[x], \\ x+|x|, \\ x+[x],\end{matrix}\begin{matrix}-1\leq x<1 \\ 1\leq x<2 \\ 2\leq x\leq 3,\end{matrix}
Where [t] denotes the greatest integer less than or equal to t. Then, f is discontinuous at:
Held on 8 Apr 2019 · Verified 6 Jul 2026.
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