Mathematics · 2021
JEE Main · 26 February 2021, Shift 1 · Q72
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:
Let $\displaystyle \mathrm{R}=\{(\mathrm{P}, \mathrm{Q}) \mid \mathrm{P}$ and Q are at the same distance from the origin $\displaystyle \}$ be a relation, then the equivalence class of $\displaystyle (1, -1)$ is the set :
Official answer
(2)
$\displaystyle \mathrm{S}=\left\{(x, y) \mid x^2+y^2=2\right\}$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.