JEE Math Practice 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 :
- A.$$S = \{ (x,y)|{x^2} + {y^2} = \sqrt 2 \} $$
- B.$$S = \{ (x,y)|{x^2} + {y^2} = 2\} $$
- C.$$S = \{ (x,y)|{x^2} + {y^2} = 1\} $$
- D.$$S = \{ (x,y)|{x^2} + {y^2} = 4\} $$
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