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Let A = {2 € 0 m ² + 2 > 1}. (a) Sketch the set A in the complex plane. (b) Is z = -2i a boundary point of A? Provide reasons for your answer. (c) Is this set open, closed, both or neither? Provide reasons for your answer.

Let A = {2 € 0 m ² + 2 > 1}. (a) Sketch the set A in the complex plane. (b) Is z = -2i a boundary point of A? Provide reasons for your answer. (c) Is this set open, closed, both or neither? Provide reasons for your answer.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:| d W File Paste 71,1,10.1.9.1,8,1,7,1,6,1,5,1,4,1,3,1,2,1,1,1, ,1,1,1,2日 Home Insert Cut Copy Format Painter Clipboard 03:09 PM 2022-04-30 Page: 1 of 1 Words: 6 Page Layout References T 14 Á Α Α΄ I U abe X₁ X² A T Font L' 2. 1.1. I Calibri (Body) BIU Document1 - Microsoft Word (Product Activation Failed) Mailings Review View Aal B-B-S ## T AaBbCcDc AaBbCcDc AaBbC AaBbcc AaBI AaBbCcL A ab 1 Normal No Spaci... Heading 1 Title Subtitle Change Heading 2 Styles Styles Paragraph G ···1·1·2·1·3·1· 4 · 1 · 5 · 1 · 6 · 1 · 7 · 1 ·8·1·9·10 · 11 · |· 12 · |· 13 · |· 14 · |· 15 · · · · · · 17 · |· 18 · 3. I I I I I I I COMPLEX ANALYSIS Please answer all questions +2 Let A = EC: Im [m² ±2 ≥1}. (a) Sketch the set A in the complex plane. (b) Is z = -2i a boundary point of A? Provide reasons for your answer. (c) Is this set open, closed, both or neither? Provide reasons for your answer. Aa ENRE= G Find ac Replace Select Editing Час 110% - 0 @? O◄ +
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