Answer to Question #240287 in Real Analysis for dahara

Question #240287

Show that the function defined as 𝑓(𝑥) = { 𝑥, 𝑥 ∈ ℚ

𝑥 ² , 𝑥 ∈ ℝ − ℚ

is continuous at 1 and discontinuous at 2.

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