Home JEE Main - Previous Year Papers JEE MAIN 2019 PAPER 9 Let be a function defined by . if be the …
JEE Main - Previous Year Papers JEE MAIN 2019 PAPER 9 Single Correct MCQ
Published on: August 11, 2026

Let be a function defined by . if be the set of all points at which is not differentiable, then has exactly:

A
five elements
B
one element
C
three elements
D
two elements

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The correct answer is:
C

A, B, C are sharp edges

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