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JEE MAIN 2021
26-08-2021 S2
Question
Let $[t]$ denote the greatest integer less than or equal to $t$. Let $f(x)=x-[x], g(x)=1-x+[x]$, and $h(x)= \min \{f(x), g(x)\}, x \in[-2,2]$. Then $h$ is :
Select the correct option:
A
continuous in [–2, 2] but not differentiable at more than four points in (–2, 2)
B
not continuous at exactly three points in [–2, 2]
C
continuous in [–2, 2] but not differentiable at exactly three points in (–2, 2)
D
not continuous at exactly four points in [–2, 2]
✓ Correct! Well done.
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Solution
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Question Tags
JEE Main
Mathematics
Medium
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