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Let f:R→ R be a function defined by f(x)= max x,x^2.Let S denote the set of all points in R,where f is not differentiable.Then :

JEE Main 2020 — Mathematics Calculus

2020mcqmedium

Let f:R→Rf:R\rightarrow Rf:R→R be a function defined by f(x)=maxx,x2f(x)=\mathrm{max}{x,{x}^{2}}f(x)=maxx,x2.Let SSS denote the set of all points in RRR,where fff is not differentiable.Then :

Official previous-year question

Held on 6 Sept 2020 · Verified 6 Jul 2026.

Options

  1. A

    0,1{0,1}0,1

  2. B

    0{0}0

  3. C

    ϕ\phiϕ (an empty set)

  4. D

    1{1}1

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