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Math Chapter Wise question with answer

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Question #50,356
Math Chapter Wise Topology English MCQ DSSSB PGT 2021

Q.In a matrix space (X, d), A be any subset. A point, x ∈ X is called a limit point of A, if for every open ball B (X, r) 1. B (x: r) ∩ (A – {x}) ≠ φ 2. (B (x: r) ∩ A) – {x} ≠ φ 3. (B (x: r) – {x}) ∩ A ≠ φ

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