Mathematics · 2020
JEE Main · 6 September 2020, Shift 2 · Q58
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:
Let $\displaystyle f: \mathbf{R} \rightarrow \mathbf{R}$ be a function defined by $\displaystyle f(x)=\max \left\{x, x^2\right\}$. Let S denote the set of all points in $\displaystyle \mathbf{R}$, where $\displaystyle f$ is not differentiable. Then :
Official answer
(2)
$\displaystyle \{0,1\}$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.