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Friday, 9 October

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JEE Main 2026 · MathsNumerical answerNumerical valueHardMulti-step

JEE Main 4 April 2026, Shift 1, Maths Q25

Question 25 of 75 in this shift, Maths question 25 of 25, Section B.

The number of points, at which the function

f(x)=\max\{6x,\ 2+3x^2\}+|x-1|\cos\left|x^2-\frac14\right|

,

x\in(-\pi,\pi)

, is not differentiable, is ______.

Official answer

3

NTA final key.

Chapter: Continuity and Differentiability
Topic: Continuity and Differentiability
Idea tested: Differentiability of Max/Min Functions

Same idea in other shifts

Asked 2× in all

6 Sep 2020, Shift 2 · Q58Let $f:\mathbf{R}\to\mathbf{R}$ be a function defined by $f(x)=\max\{x,x^2\}$ . Let S denote the set of all points in $\mathbf{R}$ , where…EasySingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.