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Friday, 9 October

JEE Main 2026 · MathsMultiple choiceTwo statementsMediumApplication

JEE Main 8 April 2026, Shift 2, Maths Q13

Question 13 of 75 in this shift, Maths question 13 of 25, Section A.

For the function f(x)=esin⁡∣x∣−∣x∣f(x) = \mathrm{e}^{\sin|x|} - |x|, x∈Rx \in \mathbf{R}, consider the following statements : Statement I : ff is differentiable for all x∈Rx \in \mathbf{R}. Statement II : ff is increasing in (−π,−π2)\left(-\pi, -\frac{\pi}{2}\right). In the light of the above statements, choose the correct answer from the options given below :
  1. (1)Both Statement I and Statement II are trueOfficial answer
  2. (2)Both Statement I and Statement II are false
  3. (3)Statement I is true but Statement II is false
  4. (4)Statement I is false but Statement II is true

Official answer

Option 1

NTA final key.

Same idea in other shifts

Asked 2× in all
  1. 8 Jan 2020, Shift 1 · Q58Let f(x)=xcos⁡−1(−sin⁡∣x∣)f(x)=x\cos^{-1}(-\sin|x|), x∈[−π2,π2]x\in\left[-\frac{\pi}{2},\frac{\pi}{2}\right], then which of the following is true ?HardSingle 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.