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Let \( R=\{P, Q) \mid P \) and \( Q \) are at the same distance from the origin \( \} \) be a relation, then the equival…

Q1

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

[JEE Main 2021, 26 Feb (Shift 1)]

a

\( S=\left\{(x, y) \mid x^{2}+y^{2}=1\right\} \)

b

\( S=\left\{(x, y) \mid x^{2}+y^{2}=4\right\} \)

c

\( S=\left\{(x, y) \mid x^{2}+y^{2}=\sqrt{2}\right\} \)

d

\( S=\left\{(x, y) \mid x^{2}+y^{2}=2\right\} \)

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