Question: 2 + 2 Let A= & E C : Im 2 - 2 21 (a) Sketch the set A in the complex plane. (b) Is

2 + 2 Let A= & E C : Im 2 - 2 21 (a) Sketch the set A in the complex plane. (b) Is a = -2i a boundary point of A? Provide reasons for your answer. (c) Is this set open, closed, both or neither? Provide reasons for your

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