JEE Main 2026MathematicsFunctionsHardMCQ

JEE Main 2026 — Functions Question with Solution

JEE Main 2026 (22 January Shift 2)

Question

Let the domain of the function be . Then is equal to :

Choose an option

Show full solutionCorrect option: A
Correct answer
A9

Step-by-step explanation

For we need
So , giving

.
For we need
i.e, .
Intersection: , so .

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Functions chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2026, covering the Functions chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.