JEE Main 2021MathematicsSets and RelationsHardMCQ

JEE Main 2021 — Sets and Relations Question with Solution

JEE Main 2021 (26 Feb Shift 1)

Question

Let R={P,Q|P and Q are at the same distance from the origin} be a relation, then the equivalence class of 1,-1 is the set

Choose an option

Show full solutionCorrect option: B
Correct answer
BS=x,y|x2+y2=2

Step-by-step explanation

Equivalence class of 1,-1 is a circle with centre at 0,0and radius =2

⇒x2+y2=2

S=x,y|x2+y2=2

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About this question

This is a previous-year question from JEE Main 2021, covering the Sets and Relations 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.