4. In each case, sketch the closure of the set: (a) -л 0.
Chapter3: Functions
Section3.2: Domain And Range
Problem 4SE: When describing sets of numbers using interval notation, when do you use a parenthesis and when do...
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Transcribed Image Text:4. In each case, sketch the closure of the set:
(a) -л <argz <л (z
(c) Re
VI
0);
(b) |Rez| < |z;
(d) Re(z²) > 0.
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